I appreciate the curiosity and imagination of Shivam Saurabh...keep it up👍👍👍

@programmingwithyadavs8566

4 жыл бұрын

True

@eurekaeureka8810

4 жыл бұрын

Very nice explanation Sir. Thank you

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

@Theadityanayak723

3 жыл бұрын

Mere ye saal yahin doubt aya

@prashantkumar09876

3 жыл бұрын

@@rkp8495 pagal sala.nonsense

THANKS SIRRR. MY CONCEPTS ARE CLEAR NOW.... THANKS ONE AGAIN SIR....💕

@Bikashkumar-rz2ns

5 жыл бұрын

Awsm......

@VishalKumar-nz2mz

4 жыл бұрын

Bhai how came you ask this doubt? Did you speed post or something like else

@triptirbauddh2003

4 жыл бұрын

Keep it up Kid. Well done.

@VishalKumar-nz2mz

4 жыл бұрын

The doubt was indeed a good one for any science enthusiast and I'll applaud you for this , this things came in every single sci. Loving boy ;))

@User-rb9ou

4 жыл бұрын

You are a curious brain, just keep thinking in this way, u have a scientific mind

Maan u r a great teacher . The curiosity inside u for giving knowledge is something!! Full respect sir!!!

"Bending is because of refraction, refraction itself is not bending"... Class 10 ncert left the chat🗿

@hasnainraza022

Ай бұрын

😂

@hasnainraza022

Ай бұрын

Let class 10 NCERT go to hell..... Here is the physicist to decide what is refraction 😂😂

@Theysayananya

Ай бұрын

@@hasnainraza022 ya thats fundamentally correct but BOARD perspective se galat. What to do.😭

God is that you ??😱 I will be sure to tell all of my friends about this channel 😘

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

The Symmetry concept explained here is really interesting and important. The Symmetry around the normal to interface between medium plays an important role in optical refraction. It is not something associated with light rather with the distribution of internal constituent of material through which light is passing during its refraction.... Thank you Sir, you are one of best science teacher and popularizer of our country.

@KavitaYadav-ul8fb

Жыл бұрын

The speed of light is changing in denser medium. When ray of light falls normally on the interface, then it does not bend. It means that the time period is not constant and will take longer time to pass because of less speed of light,but time period is always constant. How is this possible? Please answer this in this way not in sin i / sin r = 0 hope you will ans to my doubt

@priyabratadash381

Жыл бұрын

​@@KavitaYadav-ul8fb Time period and frequency of a wave (the interrelation f=1/T) depends upon source frequency and due this reason unless the repeatability or periodicity of source is affected, medium is not going to affect both frequency and time period. The velocity of light varies on passing from one medium to another medium because of the variation in wavelength. C = frequency1× wavelength 1 in vacuum. When it gets into another medium C changes to let V. Then V = frequency 1× wavelength 2. The variation in the wavelength (the spatial gap between two repetitions) is the reason behind changing of velocity. Again the bending of light for case oblique incidence is beautifully explained in Electromagnetic theory. See Fresnels theory of refraction and reflection in EMT.

Thank you sir.This was very useful.Respect from sri lanka 🇱🇰

I have seen on many internet platforms they have mentioned that snell's law is not valid for normal incidence. Even in the schools teachers use to teach that snell's law is not valid. From past three years I am regularly teaching and telling students that don't go with the misconceptions. Snell's law is valid in every condition but students Aaj line on some websites which are no authentic information. Thanks to HC VERMA SIR

@kuroshite

10 ай бұрын

And I wrote my own theory and it appears to be correct

I have got nothing to do with this topic but still I m watching just because I love watching his teachings...... 💞💞💮💮

I argued my science teacher regarding this topic for a whole period of 45 mins. He was saying that no refraction occurs when light incident normally to the surface but I was not satisfied because whatever the angle is... Change in velocity, wavelength, amplitude still occurs. So why not to call it refraction?? Because of only unchanged direction?? Definitely not. Because as sir mentioned here... Bending is sign of refraction but not itself refraction. I 100% convinced my teacher with my points to accept this as refraction. Thank u for he video sir... Big fan👍

@maskedguy2806

Жыл бұрын

Omg it happened with me too but my teacher did not agreed

@KNarasimhaSwamy1

Жыл бұрын

in text books, these days, it is clearly written that the change in speed of light ..... is called refraction. In refraction, bending of path happens except for normal incidence. Then, why do the teachers stress on Bending...

Thanks for giving clear concept

@AshishRaj-vz2sf

Ай бұрын

👍

Sir you are one of the best physists .....of the world.....

And the whole india is still have that IAS/IIT fever Kisi ko na padhne ka hai na smjhne ka hai sbko bs iit me jana hai aur 9 to 5 karna hai 🥱 Hats off to you public Hc verma sir ❣️ the greatest of all time ⚡

वोल्टेज क्या है सर कृपया इस पर कोई वैज्ञानिक दृष्टिकोण वाला वीडियो बनाए !

@vivekbhawsar77882

3 жыл бұрын

Voltage can be easily defined as it is a ability battery to charge electrons for example electron round in conductor and get discharge than again they came in battery and battery will charge this electron that is know as volt and it is the unit of potential diffence

Hello sir! Sir I've a request. Can you please make videos for the basic concepts of the physics of class 10. Like concepts that will give us a clarity well enough to solve any problem. It would be a privilege to clear my fundamentals from you sir. Thank you:)

@pranjulrajpoot2030

3 жыл бұрын

kzread.info/dash/bejne/p551r9GNndSqlMY.html

Light is a sine wave having plus and minus electric monopoles. Moment is necessary for bending, which requires force and moment arm. Inclined light beam has a downward component of electric field which produces downward force due to attraction between opposing electric monopoles and moment arm, as a result light beam rotates towards normal in denser medium like clock pendulum. In normal incident light beam there is no downward component of electric field or downward force. Also there is no moment arm the light beam therefore travels straight through denser medium without bending.

I had the same confusion but now it is crystal clear thanks a lot sir ❤️❤️❤️

Same question came in my mind Thatswhy i was searching a good explanation and i found this clip

Respected sir....if you upload all lecture of CONCEPT OF PHYSICS with questions and explanation then all market of education system of India will close ....but it's beneficial for weaker sections of society .....sir please do these.....for your satisfaction of your country......

@akshatshah3961

4 жыл бұрын

pawan Kumar To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

@rishabhdroy478

Жыл бұрын

Education chahiye free mein aur engineer banke lakho kamoyege waah re hypocrisy. Education agar free mein loge to engineer banne ke baad salary mat lena ya us salary ko daan kardena bolo hai himmat

Sir....... I would very much recommend a playlist for topics on physics...... Where you teach every basic topic in accordance with the syllabus, so that we have a uniform studying structure. And have a QnA ( question and answer) session for the topic that you have taught in the previous video. Hope you see this comment...... Thank you very much sir.... Wish you great health!!!

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

@ridhimanagari1288

4 жыл бұрын

I agree with you!

@abhishekyadav7853

2 жыл бұрын

😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃

Thanku sir . You are a real physician

@ItsLakshyaPratap

2 ай бұрын

you meant physicist?? lol

Best explanation to this problem....

Sir. Thermodynamics k entropy ki video upload kijiye..

U r my favourite teacher sir..

Good evening sir..I am saanvi, studying in 10 standard.. sir I confusion ...it is always said that potential difference is directly proportional to current..which is further equal to charge ×time..which states that potential difference is directly proportional to charge..but according to potential difference definitions V=W/Q....which means charge is inversely proportional...so I am not able to understand it??

@basicswithme0029

3 жыл бұрын

See as I understood charge and current are different things and you are mixing them up. And you are not satisfied them tell me again it may happen that I don't understood you problem .🙏

@gardening_vibes

3 жыл бұрын

You are indirectly referring to Ohm's law while stating potential difference is directly proportional to current. The only misinformation is that Ohm's law is not always valid, it has many exceptions. Whereas while talking to the definition, a) Potential difference= Work done/charge b) Current= Charge/time; Both above equation are general statements and is always valid.

Sir you are my role modern and I am also from Bihar.

Wow amazing questions 👍👍🙏🚩🚩🚩

Somebody tell me how can I ask to sir

I also had the same doubt Thank you so much sir ❤️

Sir can you please explain why we take sin only not other trignometrical ratios.

@dikshitanath5529

3 жыл бұрын

Yess sir please tell..

Thank you for the informative video, Sir! Sir I am a JEE aspirant in class 12 and I have a doubt in Ray Optics. Can we have a medium that has refractive index less than 1? It is practically not possible to obtain speed of light as being higher than vacuum but resources online state that it may be possible by the theory of relativity. Kindly help, Sir.

Sir, why electron move from cathode to anode in electrolite solution (battery machinisim)??

@urvashiagrawal6362

4 жыл бұрын

Hey! As we know that electrons are negatively charged ions and cathode is also a negatively electrode which means it is made of negatively charged electrons. And anode is positively charged. We know that electrons (negatively charged ions move from negative to positive electrodes) that is they move from negatively charged cathode to positively charged anode Hope you'll get it. If still there's a question, you can ask me out Thank you! Regards Urvashi :)

Sir i am ashutosh. I study in class 10. Sir I have a doubt in the ohm's law that I=Q/T therefore Q=I×T V=W/Q putting Q=I×T Therefore V=W/(I×T) that implies V is inversely proportional to I then how can it be V be directly proportional to I according to Ohm's law.

@sportsindia7891

4 жыл бұрын

I hope you will be next IIT topper 🙂🙂

@drsmpandit

4 жыл бұрын

Hello Ashutosh ! Nice to see the questioning attitude. One approach to answering your question is as follows: BRIEF, ONE LINE ANSWER: V not inversely proportional to I, because W / t is not a constant. -EXPANDED EXPLANATION: -> Whenever we wish to convert an equation expressed in the form of proportionality to the form of equality, we introduce a constant. --> Likewise, following the same logic, if we wish to convert an equation in the equality form to a proportionality form to establish the proportionality between two quantities, we have to ensure that the remaining quantities are CONSTANT. --> By this logic, in the above equation, where we have V=W/(I x t), we could have said V is inversely proportional to I, ONLY IF the remaining part on right hand side, W/t, is constant. However, that is not the case. W/t is work done divided by time, which is the same as power. If Voltage is varied, then for a given resistor, the power in the circuit will NOT remain the same. --> to take the arithmetic steps that you have taken one step further, we could say that W/t = P (Power). Since Power = VI, we can now say that V = V I / I, i/e., V = V, which is consistent. --> To put it differently, to infer that V is inversely proportional to I, in contradiction to Ohm's law, we will have to establish that W/t, i.e., Power P in the circuit is a constant for varying voltage or current, which is not true. As you increase the voltage applied to a resistor, we observe experimentally beyond doubt that current increases. Since Power is product of V and I, as both increase, P will also increase considerably, not remain constant.

@advarbindkumar5791

4 жыл бұрын

@@drsmpandit Thank u so much for paying your expensive time. Now I have understood the nuances. Thanks again.

One word : Genius

Same question was eating my mind,now I am satisfied with the answer.

Ohh till now I thought that mathematics and physics failed at this point but he proved it right so 😂😂😂😂😂😂😂😂😂. Sir you are a genius ❤❤❤❤❤

Sir I'm student of class 10 2022-2023 and I'm CONFUSED because in our NCERT The second law of refraction says The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for the light of given colour and for the given pair of media This law is also known as snell's law of refraction **And SNELL'S LAW SAY THAT THIS IS TRUE THAT ANGLE OF INCIDENCE NEVER BE EQUAL OR PERPENDICULAR TO 90° ( 0

Sir Upload a video on Schrodinger equation derivations

इलेक्ट्रान किस कारण से किसी चालक में एक स्थान से दूसरे स्थान पर जाते हैं? वह बल जिसे विभव कहा जाता है यानी वोल्टेज- वह पैदा कहाँ से होता है? क्या फोटानों से !

@rajathiray9031

3 жыл бұрын

Voltage is created from potential difference between two charged particles,if you have a positive pole and there are two electrons near it the closer electron will face more force and will have more potential than other,this difference in the potential is called potential difference.this difference is needed to create flow of electron.

Sir if we solve sin 0 / sin 0 by taking limit ,the answer will be 1. So refractive index will be 1 which is right

@tanishqchhabra4505

2 жыл бұрын

It's not 1 though😂

The fact that he didnt change even a single word of his legendary book from past so many years is astonishing. His books are just so accurate.

Sir plz explain tension forces in pulley problem like why we take sometimes T -mg=ma mg -T =ma Also ,friction confuses me like where to apply pseudo force

@Musinix

4 жыл бұрын

Ummmm If I'm not wrong it's because of the direction. I mean it depends on the direction where the pulley is moving(Maybe cause I'm not sure as I studied it two years ago)

@deepaksah2840

4 жыл бұрын

make eqn forces in the direction of movement - forces in the opposite direction of movement

SIR I am a student of Class 10 And I have a problem Nobody ( Teacher of my school ) Help me :- please help me sir .🤒( Work = Energy then If Work = Zero then is it possible that the Energy is also =0 which is not possible 🤔 When is it possible then Conservation of Energy is wrong Theory Of Relativity is wrong?

@user-lf5ru9cz3p

3 ай бұрын

Brother you are a nice question seeker 😅,me too like you ,I just came to class 10th this year,you are right if no work then no energy because work and energy are interrelated as written in class 9th,if you have energy you can do work if you can work you can transfer or store energy.

Sir In class 8 there is no idea about Trigonometry. .Thn how will I teach the 2nd law of refraction ?

@refatullashaikh400

5 жыл бұрын

@SHM thank you sir

@Angel_queen470

5 жыл бұрын

@Shivam How'd you send him questions?

@ashishramola6861

5 жыл бұрын

When i was in class 8 teacher used to say yaad krlo 😭

@Itsme-xh9ep

4 жыл бұрын

@@ashishramola6861 same here yrr😅

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

So the conclusion is 'when light is incident normally on a boundary'. Refraction occurs,am I right?

Is force required to move a electron increases by increasing its mass?if yes then why?

Sir i wanted to know how the formula e= mc^2 orignate means how Einstein proof it and also want understand the significance of this formula

@lalitkaushik3364

3 жыл бұрын

Search the derivation of E=mc²; and if you want to know the significance of this formula just go and study class 12 modern physics and then you will go to study bsc physics special theory of relativity.

Why we use "sin" in (sin i/ sin r) why don't we use other trigonometric functions like cos, tan etc. instead of "sin"?? Sir please 🙏 answer me, I am very confused😢

Very nice question and very clear explanation. Thank you sir.

Sir, I am Aditi Bhashkar of class 10. I want to ask you a question. My question is that, For a real and inverted image magnification (m) is taken as negative (-ve). When m

@Itsme-kb9eq

2 жыл бұрын

Negative m means the image is inverted and m

@sparshtyagi1335

2 жыл бұрын

It is not necessary that if M < 1 than the magnification is negative

@rrr210100

2 жыл бұрын

Negative sign indicates inverted image

@rrr210100

2 жыл бұрын

Just take magnitude if it is >1 enlarged positive and negative signs are taken only for direction above or below the principal axis

@ucchihaitachi4243

2 жыл бұрын

bhai tera concept hi glt h negative sign nature batata he on the basis of direction tu aisa kyu soch rha ki magnification less than 1 -ve hoga 0.5 negative value thode h

No doubt sir is authority of physics

If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is correct A. r = v B. r > v C. r = 1/v D. r Sir please explain it.

@sanchitamondal3495

3 ай бұрын

Here's the mathematical explanation , if you still have the doubt : I am representing red as r and violet as v. Wavelength r > Wavelength v => Mew v > Mew r (since wavelength is inversely proportional to refractive index) => Sin i/Sin v> Sin i/Sin r => Sin r> Sin v => r>v Hope it helps

Sir, U r god for me....

Mind blowing sir

Shivam saurav u r too good yaar.... Thnkzz fr asking sch a good question

The only teacher who cleared me this question thank u very much sir 🙏

Love you sir, you are a gem🎉🎉🎉

I am a big fan of yours and I love science

Sir, in water ,when anything is immersed ,so According to Newton's 3rd law water should apply equal and opposite force. So upthrust can be viewed as Newton's 3rd law. Please solve the question.

@umitsharma8813

4 жыл бұрын

It is the case of unbalanced external force where acrtuon and reaction are not always equal...

@VilexerCreators

2 жыл бұрын

@@umitsharma8813 no they are different terms not interconnected anyhow Umit Now Vibhu Jha try to understand when a body is put in a bucket full of water it displaces some water out of the bucket and the weight of displaced fluid is equal to force applied by water so try to think a little when it is kept in the water I will clear it now please focus on this part when the body is put in the water it displaces some volume of water = volume of the body so it mean the body does not applied force on the entire water it just applied on the particular part and that is why 3rd does not initiate the entire buoyancy force

Sir why we are using only sin not any other trigonometricalfunction in Snell law. Please sir

@horizonofmutiverse6223

3 жыл бұрын

Snell law was derived in terms of sin function. There is nothing special just mathematical derivation.

@thedictator1454

3 жыл бұрын

I can derive it, it is very simple buddy

Sir...apne kaha ...light does not bend because it has many options of directions to bend in this case by the angle 10 degrees ...but second law says the incident ray , normal and refracted ray all lie in same plane...then it will have only two directions to bend either left or right with an angle..

Sir I have few doubts 1) in capacitor the plates are not connected..then how electricity passes?? 2)Please explain Some SHM Questions containing more than 2 springs arranged

@physicsconceptandeducation1949

4 жыл бұрын

The capacitor in its conventional form is constructed from two electrically conducting metallic plates facing each other and separated by an electrically insulating medium. Applying DC voltage on the capacitor no conduction current flows through the capacitor if its insulating medium is perfect insulator. This is because ther are no free charge carriers in such medium. Practically the real insulator contains very few charge carriers and therefore a very small leakage current passes in the capacitor depending on the conductivity of the insulator. The ideal insulating medium is the vacuum as noted by Prof. Shmaliy above. On the other side ,If a time varying voltage is applied on the capacitor, a displacement current passes through the capacitor irrespective of the insulating medium. This current is termed also the capacitive current. It flows because of changing electric displacement D with time. The displacement current density is = The rate of change of the displacement with time. The electric displacement itself D= epsilon *E where epsilon is the dielectric constant and E is the electric field intensity. So if the applied voltage varies with time the E will be also time varying and also D and displacement capacitive current will be existing.

Sir, in following velocity in media 1/ velocity in media 2 (v1/v2) is equals to 1/u(mew).. Hence, it can be observed by refractive index is inversly proportional to velocity in media

Nice explanations sir ..

Thanks sir.. You are the best.

Putting any value as answer will fulfill the criteria

I also had the same doubt and wanted to ask it to someone... Now I got it. How can I ask other doubts to you sir ?

Thank you so much sir😇😇🤩😌😊

Wow man such a great question.....

Sir I am a student of class 10 and I have a question that : The phenomenon of rainbow is caused due to refraction of sunlight through water droplets but in diagram why we draw it like reflection

@bakuleshmehta2615

4 жыл бұрын

Becoz the part you considered as reflection is not actually reflection but is called *critical refraction* where bending becomes so high that velocity of light turns back to the same medium. This phenomenon as I said is called *critical refraction * or *hyper turning of light* or complete internal superficial bending of light. Go to your class room and show it off in front of otheres 😉😊

@akshatshah3961

4 жыл бұрын

It is refraction but when angle of incidence is greater than critical angle, resulting in TOTAL INTERNAL REFLECTION

Beautiful explanation

Sir,I have a doubt If there is a ball traveling in a deep space,acceleration is relative to velocity with respect to time So how do we know that ball is moving at all,if there is nothing to compare with?

@truedhonifan922

5 жыл бұрын

You are telling it is having acceleration, so with respect to whom it is having acceleration?

@You12783

5 жыл бұрын

This reminded me of NGC's TV series "Genius"

Sir aapki book ''concepts of physics '' me drift velocity ka Jo formula hai vo galat hai....kyuki hamm single electron ki nhi multiple electron ki average velocity lete hai matlb Sahi equation hoga (V=eEt/m).wo V=eEt/2m single particle ke liye aayega . Sir mujhe 1 bar confirm kr dijiye comment krke

Sir I have a question that can we see images without any screen behind it and how we able to see rainbow 🌈?? Please tell me sir🙏🙏

@rushikeshmane8204

4 жыл бұрын

We can see images without screen by hologram technology And rainbow is because of sunlight spectrum through tiny rain drops

Respectfully disagree with the professor here. Refraction is defined as bending of light! This is what Oxford dictionary says "the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density." Wiki says "In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium." By that definition, EM waves do not bend, and hence do not refract, when they are incident normally!

@Rjsirop299

2 жыл бұрын

Can you make on this topic?🙏

Nice question and solution

Sir ,why does the light not deviate when passed through optical centre of a lens

@akshatshah3961

4 жыл бұрын

Abhay Pratap Singh It does deviate, but as the lens which is used is so thin , that the deviation is negligible, so even in textbooks it is written that we use thin lenses, after all we imagine the centre as glass slab, and deviation in glass slab is directly proportional to thickness of slab

Sir why angle of incidence is greater than angle of reflection when it goes from rarer to denser medium

@no-xl6qg

2 жыл бұрын

It is not reflection ...Bruhhhhhh

Thank you sir , It is also my doubt .

Sir ,please make a lecture on diffraction of light.

If the answer is 0/0 form Plzzz use the L'hospital rule You can find some specific value for the refraction 👍

@sumantripathi5391

4 жыл бұрын

Bro it is used when we ask the value of x/x where x is just more or less than zero but here there is exactly zero by zero so it is indeterminate In short this is not x ➡0 it is x=0 so you can't find specific value

@Astro-ms6zo

4 жыл бұрын

Hehehee 0/0 is a indeterminate.

@vnbllab

4 жыл бұрын

There need to apply limit

Hello sir ❤️❤️❤️ I m from Kashmir and my question is that in case of no refraction r the two mediums same??????

@bossinfinite9742

3 жыл бұрын

If medium are same it will be no refraction it is another reason of no refraction

@bossinfinite9742

3 жыл бұрын

Medium will be different if a ray fall on normal

Sir please make a video on expression of drift velocity as many say the expression given in your book is incorrect

Sir could you please explain, when a car is in 60kmph or any other then the angular velocity of tyre

@zeusthegod5494

5 жыл бұрын

It depends upon the radius of the tyre

Angle i=0°, angle r=0° Sin 0°=1 Sin i/sin r=1/1=1 Gives refractive index 1.......so light ray goes undeviated.

why looming does not depends upon total internal reflection?

@hiyarish2610

4 жыл бұрын

Looming is consequence of refraction not TIR

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3 Total internal reflection included

how to send my questions to you ....i have some confusions

@yashasviarya1314

4 жыл бұрын

Me too

@akshatshah3961

4 жыл бұрын

To understand refraction of light ICSE 2020-21 of class 10 m.kzread.info/head/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3

Sir is amazing .Who agree to me hit like button

Thank uh sir🙏 it is very useful

Are you really the writer of HC Verma Unbelievable You are great sir 🙏🙏🙏 Your questions are really very amazing and help me a lot for my exam . A lot of love 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

🙏🏻 sir, my doubts are, What is the cause of change in speed of light after refraction? Is there any difference between slab & medium? Do speed & wavelength of light change after entering & exiting from a coloured medium? & Why does it happen?

Sir 11 class ka video share kijiye please Vector and addition of vector and from first chapter principal of homogenety Please.......,.....

sir if in dielectric Electric field in capacitor = Enot /k so Capcitance becomes k Cnot and P.D becomes Vnot/k but Electrostatic Energy of capacitor having dielectric=1/2CV^2 d does not becomes 1/2k Cnot ( Vnot/k)^2= initial energy/k though it becomes 1/2k ebslen E^2 which is equals to k initial energy so why not above condition satisfies.??

Thanks sir for concept my level I study in class 10th

But sir if you will go under transparent water tank perpendicular to water surface you observe that your body is being refracted for outside observation

from M(0)=M(v)*(1-v^2/c^2)^1/2, obtained from the "relativistic" mass expression M(v)=M(0)/(1-v^2/c^2)^1/2, we see that as 'v' approaches 'c' the M(0) approaches 0 i.e. only those objects/entities can travel at v=c that have rest mass M(0)=0. one such entity is light/photon or corpuscle as Newton had said in 17th century in his theory of optics. light being a "particle" or photon was not a new concept from Einstein. Newton has said that. using the concept of light as particles Newton derived the laws of reflection, refraction, the slowing down of light in liquids such as water relative to vacuum and in fact this slowing of the speed of light being the basis of refraction 300 years before Einstein. Newton used his kinematical and dynamical (or mechanical) laws of motion to obtain results that were simply expanded without any change in the basic conception. he knew about matter being composed of atoms or particles. he was actually the one who introduced the concept of a particle and the center of mass, which was a mathematical particle, for spatially extended objects which also became the center of gravity (which he was also the first one to define). unfortunately the general public and the scientists prefer to downplay Newton since Einstein when in fact without Newton there would have been no Einstein or modern physics. Newton invented calculus to study the physical world unlike Leibniz for whom calculus was simply a beautiful mathematical theory. he had no interest or even saw a connection between calculus and the physical world. Einstein was the moon which shined due to the reflected light of the sun which was Newton.

Me too also same question came in my mind and i was searching answer and I got this now I got it😃😃😊

Bending is Refraction, Refraction is not bending. Yeahhh

@thedictator1454

3 жыл бұрын

I am a average student but I know this concept alredy

Nive explanation sir❤️❤️

Wow... What an explanation sir !!! 😍😍