MEDIUM
9th CBSE
IMPORTANT
Earn 100

Draw a diagram to represent a sound wave.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 3
On a hot summer day, speed of sound was recorded at Chennai and Delhi as vc and vd. Then
MEDIUM
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 4
A wave of frequency 10 Hz was observed to have a compression at a particular instance. Two subsequent time intervals when a compression will be repeated are (in seconds)
MEDIUM
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 6
A tuning fork when sounded close to the mouth of a pipe produces
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 36
How does sound produced by a source reach our ears?
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 36
Explain how sound travels in the form of density variations in a medium.
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 37
What is an echo?
EASY
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 37
How is an echo different from a reverberation?
MEDIUM
9th CBSE
IMPORTANT
Together with Science Class 9>Chapter 12 - Sound>ASSESS YOURSELF>Q 37
Describe an activity to demonstrate that sound follows the same laws of reflection as light.