HARD
8th CBSE
IMPORTANT
Earn 100

Draw a neat labelled diagram of human ear and explain its working.

Important Questions on Sound

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 13 - Sound>Chapter Test>Q 17

Mention the frequency of sound produced when the vocal cords are

(a) tight and thin

(b) loose and thick.

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 13 - Sound>Chapter Test>Q 18
Define vibrations and frequency with examples.