MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is reflection of sound?

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>TEST YOURSELF>Q 7

What is reverberation?

EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 1

What is wave motion?

EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 2

 What is an echo?

EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 3

What is the audible range of hearing in humans?

EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 4
Can two astronauts talk on the surface of moon as they do on the surface of the earth?
EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 5
Although sound is produced due to repeated vibratory motion yet a vibrating pendulum does not produce sound. Why?
EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 6
What is the speed of sound in air at 0°C? (330 m/s or 3×108 m/s)
EASY
9th CBSE
IMPORTANT
Secondary Physics>Chapter 6 - Sound>EXERCISES>Q 7

What is the product of frequency and wavelength called?

(Choose from the following: Amplitude of a wave/ Speed of a wave/ Pitch of a wave)