What is Radioactive Decay? Half Life | Decay Constant | Activity (+ Problems Solving)

The Law of Radioactive Decay tells us how the number of a radioactive sample changes with time. Usually it is an exponential decay process.
Even though the different radioactive processes like alpha decay, beta decay or gamma decay are different from each other in terms of the particles emitted etc, they all share the same kind of decay law.
Half Life is defined as the time period in which the initial number of radioactive samples reaches half its original value.
Decay constant and half life are inversely proportional to each other. These quantities are a characteristic of the radioactive sample present, and is independent of the physical parameters like pressure, temperature, density etc.
Mean life is the average lifespan of all radioactive samples present.
Activity is the rate of radioactive decay, or the number of disintegrations happening per unit time. Activity also decreases exponentially with time.
We can use the conclusions derived from the decay law and other parameters to solve different problems of radioactive decay.
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NUCLEAR AND PARTICLE PHYSICS - Series :
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1) What is Nuclear Physics? ► • What is Nuclear Physic...
2) Nuclear Size / Radius ► • Nuclear Size / Radius
3) Quantization of Angular Momentum ► • What is Quantization o...
4) Nuclear Spin and Angular Momentum ► • Nuclear Spin and Angul...
5) Nuclear Magnetic Moment ► • Nuclear Magnetic Moment
6) Binding Energy of Nucleus & BE Curve ► • What is Nuclear Bindin...
7) Parity of Wave function ► • What is Parity of a Wa...
8) Symmetric & Anti symmetric Wave func ► • Symmetric and Anti-sym...
9) Liquid Drop Model of Nucleus ► • Liquid Drop Model of N...
10) Corrections to Liquid Drop Model ► • Corrections to Liquid ...
11) NZ Graph (& Maximizing BE) ► • What is NZ Graph? | Ma...
12) Fermi Energy of Nucleus ► • Fermi Energy of Nucleu...
13) Fermi Gas Model of Nucleus ► • Fermi Gas Model of Nuc...
14) Shell Model of Nucleus ► • Shell Model of Nucleus
15) Nature of (Strong) Nuclear Force) ► • Nature of (Strong) Nuc...
16) Alpha, Beta & Gamma Decay ► • Alpha, Beta & Gamma De...
17) Gamow's Theory of Alpha Decay ► • Gamow's Theory of Alph...
18) Gamow's Theory (DERIVATION) ► • [DERIVATION ] Gamow's ...
19) Q Value and KE of Alpha Decay ► • Q-Value | KE of Alpha ...
20) Beta Decay & Neutrino Hypothesis ► • Beta Decay & Neutrino ...
21) Radioactive Decay Law ► • What is Radioactive De...
22) Nuclear Cross Section ► • Nuclear Cross Section !!
23) Interaction of Nuclear Radiation with Matter ► • Interaction of Nuclear...
24) What is Cherenkov Radiaton? ► • The Physics of Cherenk...
25) Nuclear Detectors ► • Nuclear Detectors - Io...
26) Geiger Muller Counter ► • What is a GM Counter? ...
27) Scintillation Detector ► • What is a Scintillatio...
28) Semiconductor Detectors ► • What are Semiconductor...
29) What are Accelerators? ► • What are Accelerators?...
30) Van de Graaff Generator ► • Van de Graaff | Tandem...
31) Linear Accelerator ► • Linear Particle Accele...
32) Cyclotron ► • Cyclotron (Principle, ...
33) Synchrotron ► • Cyclotron & Synchrotro...
34) Betatron ► • Cyclotron & Synchrotro...
35) Fission & Fusion ► • Nuclear Fission and Fu...
36) Proton-Proton & CNO Cycle ► • Proton Proton Cycle & ...
37) Meson Theory of Nuclear Forces ► • Meson Theory of Nuclea...
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NUCLEAR PHYSICS - PLAYLIST
• Nuclear Physics
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#NuclearPhysics

Пікірлер: 188

  • @karimmohie1628
    @karimmohie16285 жыл бұрын

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  • @FortheLoveofPhysics

    @FortheLoveofPhysics

    5 жыл бұрын

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  • @STUDIOUSBRO

    @STUDIOUSBRO

    4 жыл бұрын

    @@FortheLoveofPhysics how to find decay constant of mixture of sample with decay constant lamda1 and lamda2

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    @pushkarkushwah2128

    3 жыл бұрын

    There is no any other options as u teach sir, God bless u

  • @akshatpandey9141

    @akshatpandey9141

    2 жыл бұрын

    @@FortheLoveofPhysics I myself as a student of physics admire ur good work. Ur explanation is very simple and understandable. Keep it up. Love ❤ from Bhagalpur, Bihar.

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    @user-mt7if9ru3w

    10 ай бұрын

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    @siddharthjain33414 жыл бұрын

    these kinds of channels, keep my love for physics constant. No half-life here. Thank you for wonderful content.

  • @shubhammishr
    @shubhammishr3 жыл бұрын

    Probably the best explanation i have seen so far. Well done.

  • @ProBrooriginal
    @ProBrooriginal8 күн бұрын

    Best videos of Nuclear and Particle physics on KZread ❤❤

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    @eepower4 жыл бұрын

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    @sarahsmalley54794 жыл бұрын

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    @shivamdellwork4682 жыл бұрын

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    @SuicideRedemption1003 жыл бұрын

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    @devidkonwar77363 жыл бұрын

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    @rhemawords25424 жыл бұрын

    Wow!, Mr. am so surprised that I can got the understanding easily? Thank you very much!!

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    @shainborlanglyngkhoi6592 жыл бұрын

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  • @FortheLoveofPhysics
    @FortheLoveofPhysics5 жыл бұрын

    Nuclear & Particle Physics - Playlist: kzread.info/head/PLRN3HroZGu2n_j3Snd_fSYNLvCkao8HIx

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    @nithingowda42803 жыл бұрын

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    @mahendramosalpuri89283 жыл бұрын

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  • @kakkirenihemanth6657
    @kakkirenihemanth66573 жыл бұрын

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  • @janithjeewantha7064
    @janithjeewantha70645 жыл бұрын

    Sir, thank you very much for your videos. your method of teaching is amazing...its difficult to find such a good teacher like you for this subject even in sri lanka also...knowledge and explanation skill are two things. Lot of teachers have a good knowledge, but they are fail in explaining something to others. I appriciate your work and it is very helpful to my studies. good luck...

  • @FortheLoveofPhysics

    @FortheLoveofPhysics

    5 жыл бұрын

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    @Goku-gf7jr Жыл бұрын

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    @SaritaSingh-ww7ri3 жыл бұрын

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    @mahianyuroseshow28204 ай бұрын

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    @DropouT_072 жыл бұрын

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    @evansrosana27552 жыл бұрын

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    @PUBGgamer-kf5vz3 жыл бұрын

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  • @joewalters767
    @joewalters767 Жыл бұрын

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    @biswajeetnayak44615 жыл бұрын

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    @armaanarora1717 Жыл бұрын

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    @shreyashkokadwar87322 жыл бұрын

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    @shwetas38294 жыл бұрын

    Superb explanation..and very good content knowledge .I had a query that if an element is radioactive..then each and every atom should have disintegrated at same instant ..but going through this tutorial my doubts are clear Thank you

  • @aishwaryaachuthan1772
    @aishwaryaachuthan17723 жыл бұрын

    Beautifully explained..thankyou sir😊

  • @ProBrooriginal
    @ProBrooriginal8 күн бұрын

    Great Explanation ❤

  • @BoredCreator
    @BoredCreator2 жыл бұрын

    thank you so much for this video

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    @adityamahajan52963 жыл бұрын

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  • @mahendramosalpuri8928
    @mahendramosalpuri8928 Жыл бұрын

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    @michaelkwaku_gh74722 жыл бұрын

    May god bless for your good work

  • @MonSteR-du2mt
    @MonSteR-du2mt3 жыл бұрын

    am just unable to explain how much thanku am i to u👏🏻

  • @mercychepkurui5866
    @mercychepkurui58662 жыл бұрын

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  • @Rajeshkumar-bq3jk
    @Rajeshkumar-bq3jk3 жыл бұрын

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  • @aarontseke1918
    @aarontseke1918 Жыл бұрын

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  • @dr.m4488
    @dr.m44883 жыл бұрын

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  • @gokul6957
    @gokul6957 Жыл бұрын

    Thank you sir, Nice explanation

  • @swapnilgupta775
    @swapnilgupta7753 жыл бұрын

    Wonderful explanation as usual ,🙂🙂

  • @rhemawords2542
    @rhemawords25425 жыл бұрын

    Thank you Mr.!

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    @AdeshBenipal2 жыл бұрын

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    @bruco63283 жыл бұрын

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    @nivetha013455 жыл бұрын

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  • @hariomverma952
    @hariomverma9523 жыл бұрын

    Wanderful explanation, thanks Sir

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    @elleltakebede5201 Жыл бұрын

    the lecture was grate and all but I was more occupied with his handwriting perfection.

  • @aryachandrancs282
    @aryachandrancs2824 жыл бұрын

    It's useful and So thankful to you sir

  • @chandudhanekula6066
    @chandudhanekula60663 жыл бұрын

    Excellent explanation by sir

  • @amtulqadeer2594
    @amtulqadeer2594 Жыл бұрын

    Awesome sir👍

  • @soumyaranjan580
    @soumyaranjan5803 жыл бұрын

    Full concept cleared.... 🥰🥰🥰

  • @MziyakoZiyanda
    @MziyakoZiyanda27 күн бұрын

    This is very helpful, watching from Eswatini

  • @mugonzifreddie6039
    @mugonzifreddie60393 жыл бұрын

    Great teacher

  • @anandsharma9005
    @anandsharma90052 жыл бұрын

    Thanks you sir for this video

  • @Amityphysics
    @Amityphysics4 жыл бұрын

    you are awesome sir , explanation is very good

  • @marox4344
    @marox43444 жыл бұрын

    So well done... 🌸🌸🌸i’m so grateful 😭

  • @FortheLoveofPhysics

    @FortheLoveofPhysics

    4 жыл бұрын

    Thank you and welcome :)

  • @learnoncologytogether
    @learnoncologytogether4 жыл бұрын

    good lecture.I wish u also tell some about radiationprotection. effects.

  • @cesarmoreno987y
    @cesarmoreno987y Жыл бұрын

    wonderful video

  • @mohammadashurz9056
    @mohammadashurz90563 ай бұрын

    Amajhing❤

  • @jabeenfathima8295
    @jabeenfathima8295 Жыл бұрын

    Thank you sir it's very helpful for my exams.

  • @ramasingh1423
    @ramasingh14233 жыл бұрын

    Very nice video sir

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    @basmawahab8794 жыл бұрын

    You have actually saved my life!! Thank you so much

  • @FortheLoveofPhysics

    @FortheLoveofPhysics

    4 жыл бұрын

    I am glad :)

  • @NatnaelDaw-cv9bt
    @NatnaelDaw-cv9btАй бұрын

    You are the best!!!!

  • @sujitpanda1985
    @sujitpanda19853 жыл бұрын

    Love you sir 🔥❤️

  • @lunagh6149
    @lunagh61493 жыл бұрын

    I just found your channel and it's amazing, you are a brilliant !!

  • @AMANMALVIYAUPWALACHANNEL
    @AMANMALVIYAUPWALACHANNEL3 жыл бұрын

    perfect video sir

  • @nikhilkumarsingh9872
    @nikhilkumarsingh98722 жыл бұрын

    With increase in time ...number of undecay particle decrease...that those who decaying or become stable is mass also decreased

  • @GurcharanSingh-ep4te
    @GurcharanSingh-ep4te4 жыл бұрын

    Thank you so much sir

  • @user-cf7dc9ul7e
    @user-cf7dc9ul7e6 ай бұрын

    Thank you sir

  • @juniortavares7666
    @juniortavares76664 жыл бұрын

    Sir u are amazing!!!!!!

  • @shamsulislamkhan4198
    @shamsulislamkhan41984 жыл бұрын

    Thank you sir,

  • @DilawarKhan-cl3zp
    @DilawarKhan-cl3zp4 жыл бұрын

    Thank you sir very much You make me aday

  • @barongrand9389
    @barongrand9389 Жыл бұрын

    Well done

  • @charlesmacha4091
    @charlesmacha40914 жыл бұрын

    Who are the five that have disliked this video. How can one not manage to like such a lesson.

  • @Arsh4321
    @Arsh43213 жыл бұрын

    U r amazing... Love from sweden.

  • @waliahemadshaikh942
    @waliahemadshaikh9423 жыл бұрын

    Thank you so much sir great explanation sir please make videos on quantum mechanics

  • @yummyfoodworld-0
    @yummyfoodworld-04 ай бұрын

    Great 👍

  • @bivkrish
    @bivkrish11 ай бұрын

    Thankyou sir

  • @pradyumnalenka8411
    @pradyumnalenka84114 жыл бұрын

    Great teaching Professor.. Appreciate your efforts to make things utterly simple to understand by analogical examples. I have few doubts, which I hope you will try to find time to clarify. How half lives of different isotopes are measured. Like, I can guess, for radio-isotopes with half lives in days, months or few years, it can be measured from the slope of their decay curves made from periodic measurements of chemically separated samples. But for isotopes having half lives in nanoseconds, microsecond or even seconds and minutes how it is measured? Also for isotopes like U-238 which has half lives in billions of years, which virtually does not decay at all in measurement time scales, how practically their half lives are measured? I hope and wish that, you will come up with a video for these doubts. Thank you so much

  • @FortheLoveofPhysics

    @FortheLoveofPhysics

    4 жыл бұрын

    Half life is one parameter. If you take any radioactive material, and calculate its mass variation over a sufficient time period, you can plot it as an exponential function and from there derive all necessary parameters

  • @pradyumnalenka8411

    @pradyumnalenka8411

    4 жыл бұрын

    @@FortheLoveofPhysics How practically it is possible to estimate half life of a short-lived radionuclide e.g. Po-214 or Po-218 or Po-212 and there are many others, whose half lives are in micro or nano seconds. In practical measurement time scale mass variation can not be measured, as in a second all activity will be decayed to near zero level.

  • @muhammadsawan3857
    @muhammadsawan38573 жыл бұрын

    sir, you did a wonderful life

  • @sadiashahzadi6841
    @sadiashahzadi6841Ай бұрын

    Well done task

  • @Lucifer-jl9vh
    @Lucifer-jl9vh4 жыл бұрын

    Crystal Clear! Thank you Sir..U helped me score full in physics..!

  • @kunalbisht6916
    @kunalbisht69162 жыл бұрын

    It is more important to understand the deep concept so plz explain in Indian language which most students know (hindi).

  • @liaqathussain954
    @liaqathussain9545 жыл бұрын

    Plz made a video on measurement of life time of excited states

  • @megavolt-3479
    @megavolt-34794 жыл бұрын

    wow perfect 💜💜

  • @vidyotmaverma7416
    @vidyotmaverma741611 ай бұрын

    can you please make a video explaining Bateman equation secular and transient equilibrium?

  • @sapnasingla9038
    @sapnasingla9038 Жыл бұрын

    Limits for mean life time in numerator should be from 0 to No as we integrating wrt dN, if i'm not mistaken.