Ive been stuck for literally hours, your video cleared it up in 30 min. Thank you!

@danthetutor2624

11 ай бұрын

Happy to help! Thanks for watching!

I have watched like a dozen videos on thin film interference and this is by far the best one. Builds such a good foundation on the subject, i somehow got all my homework after this

@danthetutor2624

4 ай бұрын

Wow, thanks for the compliment! Where's the award for "Best video on Thin Film Interference"?

Watching this 2 hours before the AP Phys 2 exam, this helped so much!

@danthetutor2624

Ай бұрын

Good luck!

😀I join Matt-Holdren's comment. I've been stuck trying to solve one exercise for hours, but thanks to your video I was finally able to solve it. The formula and solution method you showed are very clear and easy to remember. I am wondering why it's not explained so clearly in my physics book... Thank you very much!!!

Thank god I found this in time man...my head was spinning as to why we were switching the formula of constructive and destructive this whole time... Thanks a lot!

@danthetutor2624

3 ай бұрын

Believe me, I wish I knew this sooner too, haha

What a brilliant and straight forward explanation, you're saving lives !

@danthetutor2624

6 ай бұрын

I’m not a doctor. I’m just your normal everyday supertutor.

Simple and beautiful explanation!

this was so helpful, thank you so much! I have my physics midterm in a couple hours

Thankyou so much sir!!. Best video for film interference

@danthetutor2624

Ай бұрын

Thanks! Happy to help!

Thank you so much Dan. You've saved my life.

@danthetutor2624

25 күн бұрын

No problem! Next time, you can save my life.

best video out there on thin film interference. period. thank you a trillion

@danthetutor2624

2 ай бұрын

Thanks for the stellar review!

absolute guy for this

great video thanks for the help!

i finally understand now !!! thank you!

Thank you!

Best teaching

thanksss i understood it very well !!

Great explanation, thank you I finally understand this now lol

Best tutorr everrr.. i dua you all the best hocamm

@danthetutor2624

6 ай бұрын

Thanks! Appreciate it

Thank u, u saved my life before finals

@danthetutor2624

3 ай бұрын

No prob. Now go crush that exam!

thanks sir, good vid

@danthetutor2624

Ай бұрын

Glad you enjoyed!

the best love this

legend!

perfect teacher and better then our school teacher

@danthetutor2624

2 ай бұрын

Really setting a low bar there… haha thanks!

Dan the tutor❤️

brilliant

Why is it that when you go from high to low n there isn't a phase shift? 3:35

2:25 Could you please inform me why we need the smallest value possible and when will we use the greater values?

@danthetutor2624

9 ай бұрын

Good question. Usually, the question has some wording like "minimum thickness", and that means that you use the smallest value for m. You'll notice that my questions did not say that, so technically you can use the larger values for this video. The only time you NEED the larger values is when the question says something like "what are the first 3 thicknesses that will work?" In that case, you'd use the first 3 values for m (for instance m = 1, 2, 3)

@andrewjustin256

9 ай бұрын

@@danthetutor2624 But why do we need the greater values in the second scenario; I don't have an intuitive feeling for it. Besides, I don't walk with you in the notion of "you can technically use it". What do you exactly mean by this? Will I get the same results even if I use larger values?

@danthetutor2624

9 ай бұрын

It's because there are infinitely many answers to the thickness question, depending on what value you use for m. So for instance the answer could be 1 meter thick, 2 meters thick, 3 meters thick, etc. That's why most problems will say "minimum thickness". I say "technically" because I meant to put in the word "minimum thickness" but I forgot. So any value of m would work. But most problems will not forget to say that.

niceeee

Wouldn’t you have to change your wavelength to the wavelength in the film?

@danthetutor2624

7 ай бұрын

I see what you're saying. I think that makes logical sense, but every physics problem I've ever seen doesn't do that. So I'm inclined to say "no, don't change the wavelength" but I don't have a good reason why.

Ur the best

@danthetutor2624

8 ай бұрын

Correct

There's a point I don't really get it. How can I know there is actually 1 lambda in 2t? if light is blocked out, there's probably 2 lambda in 2t, therefore the answer of thickness might be tow times of yours

@danthetutor2624

8 ай бұрын

Which problem are you talking about?

@user-xo5co5ew1j

8 ай бұрын

@@danthetutor2624 thin film interference thickness measurement

For us non physics people, what exactly is a phase shift?

@danthetutor2624

2 ай бұрын

Let me bestow some knowledge to you: light moves like a wave. Just like a sin or cos wave from math class. And so when we say there’s a phase shift, we’re talking about moving the sin graph by exactly half a period (half a cycle). It doesn’t matter if you move the graph left or right because it’s symmetric and it will look the same no matter what.

@robertdarling2071

2 ай бұрын

Thank you much!

Most other videos the wavelength in the formula is taken as the wavelength of the film ,, why you take it as the wavelength of the light???

@ryanjiang1376

2 ай бұрын

I was bouta ask the same question

@ryanjiang1376

2 ай бұрын

@ Dan the tutor

@ryanjiang1376

2 ай бұрын

@hussienbast2342 collegeboard says to use wavelength of film so I’d just do thT

save my life

@danthetutor2624

2 ай бұрын

that's what I do

mwa 💋

He didnt explain anything

@aidencharles3106

3 ай бұрын

He explained everything lol