Lesson 17 of 27 • 4 upvotes • 14:46mins
In this lesson we are studying about the principles of loudness of sound. Difference between audible & non-audible sounds, noise pollution, etc. In a very detailed form.
27 lessons • 6h 15m
Acids and Bases
14:53mins
Electric current- introduction
12:47mins
Effects of electric current
13:43mins
Materials- Metals
14:33mins
Materials- non- metals
14:23mins
The Heat
14:43mins
Synthetic fibres and plastics
14:47mins
Lightning
14:07mins
Earthquakes
14:55mins
Types of Chemical Reactions
13:59mins
PH & Salts
14:38mins
Light- 1: Introduction to Light
14:37mins
Light- 2: learn about Mirrors
14:59mins
Light-3: Learn about Lenses
11:21mins
Light - 4: Laws of Reflection
13:25mins
Sound-1
14:24mins
Sounds- 2
14:46mins
Principles of Image formation in Spherical Mirrors
11:08mins
Types of Images formed on Spherical Mirrors
13:24mins
Wind, Strom & Cyclone
14:30mins
Natural Fibres & fabric
14:00mins
Methods of Separation
14:07mins
Principles of Image formation by Concave and Convex Lenses
14:58mins
Work & Energy ( Kinetic Energy)
15:00mins
Potential Energy & Laws of Energy
12:52mins
Concepts of electric current
12:59mins
Concepts of Magnets
11:50mins