Lesson 14 of 18 • 15 upvotes • 9:34mins
This lesson is about sound, i.e, how humans produce sound and how they hear sound.
18 lessons • 3h 4m
Overview of the Course (in Hindi)
5:17mins
Crop Production and Management (in Hindi)
14:56mins
Microorganisms: Friend and Foe (in Hindi)
13:29mins
Microorganisms: Continuation (in Hindi)
14:57mins
Synthetic Fibres and Plastics (in Hindi)
12:42mins
Metals and Non - metals (in Hindi)
10:39mins
Coal and Petroleum (in Hindi)
12:30mins
Combustion and Flame (in Hindi)
10:58mins
Conservation of Plants and Animals (in Hindi)
7:05mins
Cell: Structure and Functions (in Hindi)
11:18mins
Reproduction in Animals (in Hindi)
8:18mins
Force and Pressure (in Hindi)
8:27mins
Friction (in Hindi)
7:23mins
Sound (in Hindi)
9:34mins
Some Natural Phenomena (in Hindi)
8:01mins
Light (in Hindi)
11:36mins
Stars and Solar System (in Hindi)
10:49mins
Pollution of Air and Water (in Hindi)
6:39mins