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CBSE Class 9

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Science

Motion, Force & Work

Numerical Problems

Lesson 10 of 10 • 6 upvotes • 8:45mins

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Kumari Jyoti

Numerical problems

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Sound: Class 9 NCERT

10 lessons • 1h 23m

1

Overview

3:22mins

2

Production of Sound

5:20mins

3

Propagation of Sound

7:58mins

4

Longitudinal Waves

9:46mins

5

Pitch

10:50mins

6

Reflection of Sound

9:40mins

7

Range of Hearing

9:46mins

8

Structure of the Human Ear

8:20mins

9

Short Answer Question

9:35mins

10

Numerical Problems

8:45mins

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