JEE Main 2024 PYQs - Modern Physics & Semiconductors | Jan Attempt | Eduniti | Mohit Sir

00:00 Introduction
02:02 Semiconductors
31:48 Modern Physics

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#jeemain2024 #JanattemptSolutions #eduniti #mohitgoenka #iitjee #jee2024 #pyqs #previousyearquestions

[mohitgoenka]

In Q2 09:27 of semiconductor it should be temp is increased at 2 C/s and not cooled at 2 C/s (a language error at NTA's end)
We missed mentioning it while solving

[Shiva]

Those who are new to this channel mark my words he is going to become your favorite physics sir soon... ✅✅

[aakash]

Modern physics 33:20 38:37 ( inverse square law only grav and elrostatic, nuclear forces are not central force unlike grav, electro and also they are charge dependent) 1:02:58 1:08:54(dont take rydbirg value in numerical ) 1:15:39 1:16:47 1:25:00 1:29:38 1:32:02 1:39:29

[Mynotes-mruw]

35:00
41:00
43:50 do it again
54:35 wapas kro
56:00 931.5*∆m MeV (matlab agr ∆m ko 931.5 se multiply kro to energy MeV me hi aayegi)
57:05 Don't forget to convert ev to joules.
59:00 agar complete absorb hua to p=I/c aur complete reflect hua to p=2I/c
1:05:00 do it again
1:20:00
1:28:30 energy thats lost is given to the daughter nuclei
1:30:45
1:32:15 dhyan se force aur momentum

[hridayaprakash]

For the new ones here...
This is "THE BEST " place for quick revision and question solving😊
No unnecessary talks and comments..

[MMdeku]

4:42 zener q

9:23 imp q good

25:02 diode values

34:00 QA read properly

39:21 theory q hard

43:27 do imp

50:03 whattt

51:45 balance properly - for BE q reactions balance mass number by multiplying constants

57:25

58:32 formula

1:03:49 imp good

1:06:01 imp

1:11:06 just see

1:16:54 hard q

1:22:05 😅

1:27:30 imp q

1:29:50 q

1:41:02 just look

[jagratisharma]

1:37:44- 1KWH- 3, 6 *10^6
1:36:04 - BROTHER YOU BETTER REM THAT STOPPING POTE IS
59:41 - FIR SE
12:37 - how to calulcalte change in temp and aplha in semi
14:47 - new thing
26:47- raat le beta
30:11
39:30- raat
43:28- fir se
45:16 - formula
48:51 - formula
51:06 - use brain
52:49
58:03- ev convers....
1:05:10 - KE OF photon
1:10:16
1:14:39- power question
1:18:10
1:20:44- imp
1:22:18 -
1:25:15 - graph
1:29:49 -
1:32:41- TRUST YOUR GUTS

[NiteshChoudhary-vlqu]

Modern physics
22 October
33:06
36:00
50:00
51:42
54:30
58:20
1:02:19
1:08:40
1:22:00
1:25:30
1:30:10
1:31:50
1:38:00
1:39:41
Today's task completed
Best of Luck my 2025

[atomsandhormones]

4:37, 25:04, 27:33 (demorgan), 30:11 (alternate method), 39:06, 50:54 (assumed), 52:02 (product - reactant), 1:04:12, 1:06:00, (alternate), 1:10:43 (alternate), 1:18:49 (1 to 3 not from 2)

[yashyadav]

At 1:10:53 Even if we directly calculate the wavelength of photon using rydberg equation, the answer is coming out to be 17 ....

[AanUniqueintrest-icgf]

Thank you sir, Sir aapki vajah se mai physics ke pyqs khud se solve kar pa rahi hu Thank you sir

[ayushsoni]

Sir In Q-1 why have to taken case of zero A because Power is also given for zener voltage..so if the zener current will be zero, then power will also become zero?

[RimaSingh-ly]

00:09 Semiconductors and Modern Physics topics discussed for JEE Main 2024.
02:24 Discussing errors in the final answer key
06:54 Discussing resistance value ranges in semiconductors
09:26 Experiment on semiconductor resistance change
15:04 Explanation of electron behavior in volts
17:27 Explaining logic gates and Boolean algebra in JEE Main 2024 PYQs
21:55 Discussion on the breakdown voltage and current of a zener diode.
24:08 Understanding potential differences in circuits is crucial for solving problems accurately.
28:37 Understanding the properties of semiconductors
31:02 Discussing modern physics questions in JEE Main 2024
36:05 Derivation of nuclear radius formula and its application
38:34 Summary of discussion on nuclear force and its characteristics
43:02 Understanding energy calculation and photon characteristics
45:25 Calculation of frequency of radiation emitted during transition in Hydrogen ion
50:17 Explanation of photoelectric effect and nuclear fusion process
52:28 Calculation of binding energy related to nuclear reactions
57:02 Explanation of threshold frequency and work function in modern physics
59:29 Discussion on the Paschen series and energy differences in orbits
1:04:56 Solving nuclear physics related questions involving energy release and mass calculations.
1:07:06 Discussing mass defect and energy release in nuclear reactions
1:11:37 Understanding energy calculations in semiconductor physics
1:14:07 Understanding photon emission in semiconductors through simple questions.
1:19:04 Energy difference of 12.09 electron volts in semiconductor physics.
1:21:26 Discussion on hydrogen atom and energy transitions
1:26:52 The concept of mass defect and kinetic energy of daughter nuclei
1:29:21 Explanation of magnetic moment in Modern Physics
1:34:14 Solving threshold wavelength equation for photoelectric effect
1:36:41 Explanation of mass defect and energy conversion in a reaction
1:41:39 Discussion on mass number and nucleus radius
1:43:50 Discussion on time management during exam thank sir

[premprajapati-kfnc]

Some better and tricky Questions
Modern physics :-
34:37
39:05
50:08
51:16, ,,54:20 Nuclear Physics
58:58 Radiation pressure

[thesatyamtiwari]

Sir in 4th question of modern physics
Angular momentum should be integral multiple of h/2π
Why we are considering it as multiple of h

[rishikumar-uftu]

25:20
36:21
43:00
49:41 good question
1:03:00 good manipulation
1:08:51
1:16:48
1:23:43 eergy of all levels in hydrogen spectrum

[vansh-hg]

33:30❤51:28❤58:18 P =I/C (when completely absorb) <~~ 2I/C (when partially absorbed). Speed of light in medium is C/μ

[nipungrover]

sir 9 th ko paper hai and this the last video i am watching and ab formula revision karunga

[AspirantIITJEE]

thik hai, karliya seekh liya ho gya, best of luck everybodi 🍀🍀

[Skmjee-IIITH]

revision
3) band energy meanns ionisation energy
11) unique qs, (a+b) + (a + b ) == (a+a ) +(b+b) so that its easy to simplfy