EASY
9th CBSE
IMPORTANT
Earn 100

What is meant by reflection of sound?

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 4
Name a place where you can experience echo.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 5
What is meant by persistence of hearing?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 6
What is meant by reverberation? Give an example.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 7
When is a body said to travel at supersonic speed? 
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 8
Compare the speed of light with that of sound.
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 9
Calculate the minimum distance required to hear an echo.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 10

Give reasons for the following:

The speed of sound in solids is more than the speed of sound in gases.

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 6 - Sound>Check Your Progress>Q 10

Give reasons for the following.

The speed of sound in hydrogen is more than the speed of sound in oxygen.