Playlist · Mohit Tyagi Lectures organized

abj sir's modern physics in order (from Mohit Tyagi/Competishun YT channel)

by Mohit Tyagi Lectures organized · 35 videos

Total watch time

1d 17h 55m

at 1× speed · exactly 1 day, 17 hours, 54 minutes, 37 seconds at 1×

At an hour a day you'd finish in 42 days

custom

Finish by

42 days

at an hour a day · pick your own pace

At each speed

1×	1d 17h 54m 37s
1.25×	1d 9h 31m 42s	−8h 23m
1.5×	1d 3h 56m 25s	−13h 58m
1.75×	23h 56m 55s	−17h 58m
2×	20h 57m 19s	−20h 57m

Average video1h 11m 51s

Longest1h 33m 43s

Shortest21m 28s

The shape of the course

Each column is one video, to scale

1:33:43

WatchedTo watch

Next time, skip the copying: change youtube.com to playlistduration.com in any playlist, video or channel address and it opens here. Or see the total on YouTube itself, with our extension for Chrome, Firefox or Edge.

Your plan

Plan to finish

About 42 days at an hour a day

Pick a daily pace and the days you'll watch. Ticked videos are skipped.

At one hour a day, every day, this playlist takes about 42 days. Turn on JavaScript to plan around your week.

Videos (35)

1d 17h 55m in total · tick what you've watched

Tick videos you've watched — progress is saved in this browser. Titles open on YouTube in a new tab.


1	1 Photoelectric effect \| Einstein's equation \| Work \| Kinetic energy of fastest photoelectron · Mohit Tyagi	1:25:39	2020-12-06
2	2 Advanced examples \| Einstein's equation \| Kinetic energy of fastest photoelectron \| Photoelectric · Mohit Tyagi	1:29:05	2020-12-07
3	3 Photoelectric effect experiment \| Stopping potential \| Photoelectric effect \| Modern physics · Mohit Tyagi	1:23:04	2020-12-08
4	4 Photoelectric effect \| Radiation force \| Force due to photons \| IIT JEE main advanced · Mohit Tyagi	1:25:42	2020-12-11
5	5 Radiation force advanced examples \| DE Broglie's hypothesis \| Matter wave \| IIT JEE main advanced · Mohit Tyagi	1:17:51	2020-12-12
6	1 Bohr's model introduction \| Bohr's quantization rule \| Atomic structure \| IIT JEE main Advanced · Mohit Tyagi	1:00:37	2020-12-13
7	2 Calculation of radius, velocity energy of H like atoms \| Bohr's model \| Atomic structure · Mohit Tyagi	1:27:02	2020-12-14
8	3 Rydberg constant \| Energy of H like atom \| Ionization energy \| Bohr's model \| Atomic structure · Mohit Tyagi	1:24:14	2020-12-16
9	4 Hydrogen spectrum \| Lyman series \| Balmer series \| Paschen series \| Series limit \| Bohr's model · Mohit Tyagi	57:33	2020-12-17
10	5 Advanced examples on hydrogen spectrum \| Effect of motion of nucleus \| Bohr's model \| IIT JEE · Mohit Tyagi	1:13:18	2020-12-18
11	6 Advanced examples on Bohr's quantization rule \| Atomic collision \| Bohr's model \| IIT JEE · Mohit Tyagi	1:20:54	2020-12-19
12	7 Recoil speed of H atom on emission of photon \| Advanced example \| Bohr's model \| IIT Physic · Mohit Tyagi	21:28	2020-12-20
13	1 Introduction of X ray \| Bremsstrahlung Effect \| Coolidge tube \| X ray tube \| Cutoff wavelength · Mohit Tyagi	1:13:10	2020-12-20
14	2 Continuous X ray \| Characteristic X ray \| Coolidge tube \| Moseley's law \| IIT JEE main advanced · Mohit Tyagi	1:18:26	2020-12-21
15	3 Franck Hertz Experiment \| Bragg's law \| Davisson Germer experiment \| X ray \| Modern physics · Mohit Tyagi	59:30	2020-12-22
16	1 Size of Nucleus \| Energy mass equivalence \| Nuclear force \| Isotopes \| Isotones \| Nuclear physics · Mohit Tyagi	1:17:03	2020-12-23
17	2 Mass defect \| Binding energy \| Stability of nucleus \| Fusion \| Fission \| Nuclear physics · Mohit Tyagi	1:12:12	2020-12-24
18	3 Radioactivity \| statistical law \| activity \| decay constant \| Nuclear physics \| IIT advanced · Mohit Tyagi	1:33:43	2020-12-25
19	4 Advanced examples of radioactivity radioactive series \| nuclear physics \| IIT advanced · Mohit Tyagi	1:25:40	2020-12-26
20	5 Radioactive decay \| Displacement law \| nuclear physics \| IIT advanced \| JEE main · Mohit Tyagi	58:50	2020-12-27
21	6 Alpha decay \| Beta decay \| K capture \| nuclear physics \| radioactivity \| IIT advanced · Mohit Tyagi	1:18:57	2020-12-28
22	7 Nuclear fission \| Nuclear reactor \| nuclear physics \| radioactivity \| IIT advanced \| JEE main · Mohit Tyagi	1:12:52	2020-12-29
23	8 Nuclear fusion \| Fusion at sun \| nuclear physics \| radioactivity \| IIT advanced \| JEE main · Mohit Tyagi	1:05:31	2020-12-30
24	1 Fermi energy \| Band diagram \| Conduction band \| Valence band \| Semiconductors \| Electronic devices · Mohit Tyagi	1:29:08	2021-01-09
25	2 Intrinsic semiconductor \| Extrinsic semiconductor \| Conductivity \| Doping \| JEE main · Mohit Tyagi	1:18:15	2021-01-10
26	3 Examples on extrinsic semiconductor \| PN junction \| PN diode \| Semiconductors \| Electronics · Mohit Tyagi	1:01:19	2021-01-11
27	4 Forward biasing, reverse biasing of PN diode \| Breakdown of PN diode \| Avalanche breakdown \| Zener · Mohit Tyagi	1:18:31	2021-01-13
28	5 Zener diode \| Half wave rectifier \| Full wave rectifier \| Semiconductors \| Electronics \| JEE main · Mohit Tyagi	57:50	2021-01-14
29	6 Examples on PN diode \| Photodiode \| Light emitting diode \| Working principle of transistor · Mohit Tyagi	1:15:19	2021-01-15
30	7 Common base transistor \| Amplifier \| current gain \| Voltage gain \| Power gain \| Semiconductor · Mohit Tyagi	1:00:58	2021-01-16
31	8 Common emitter transistor as amplifier \| Common base amplifier \| transconductance \| Semiconductor · Mohit Tyagi	54:42	2021-01-18
32	9 Examples on transistor \| Analog digital signals \| Logic gates \| Semiconductor \| Electronic dev · Mohit Tyagi	1:22:26	2021-01-19
33	1 Transducer \| Channel \| Noise \| Transmitter \| amplification \|Bandwidth \| Communication system · Mohit Tyagi	1:05:36	2021-01-22
34	2 Propagation of EM waves \| Ground wave \| Sky wave \| Space wave Antenna \| Communication system · Mohit Tyagi	55:20	2021-01-23
35	3 Examples of communication system \| Amplitude modulation \| modulation index diode detector · Mohit Tyagi	52:52	2021-01-24

For your README

Embed a badge

Show the watch time in a README or course description — it links back here and updates itself

Markdown

[![Watch time: 1d 17h 55m · 35 videos](https://playlistduration.com/badge/playlist/PLl_8nXmf6wa_saNsMEvvdb7g5uMFqvIuQ.svg)](https://playlistduration.com/playlist/PLl_8nXmf6wa_saNsMEvvdb7g5uMFqvIuQ)

HTML

<a href="https://playlistduration.com/playlist/PLl_8nXmf6wa_saNsMEvvdb7g5uMFqvIuQ"><img src="https://playlistduration.com/badge/playlist/PLl_8nXmf6wa_saNsMEvvdb7g5uMFqvIuQ.svg" alt="Watch time: 1d 17h 55m · 35 videos" width="228" height="20"></a>

Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.

Want the numbers themselves? GET https://playlistduration.com/api/v1/playlist/PLl_8nXmf6wa_saNsMEvvdb7g5uMFqvIuQ returns them as JSON — free, no key. API docs →

Data from the YouTube Data API as of 2026-10-25 (cached). Private or deleted videos are excluded from totals.