EASY
9th CBSE
IMPORTANT
Earn 100

Derive a relationship between time period and frequency.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 2

 Derive a relationship between wave velocity, wavelength and time period.

EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 3
Derive a relationship between wave velocity, wavelength and frequency.
EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 4
How do bats locate their prey during flight?
EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 5
State four practical uses of ultrasonic vibrations.
EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 6
Describe an experiment to prove that material medium is required for the propagation of sound waves.
MEDIUM
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 7
 Draw a distance-density graph for a longitudinal wave.
EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 8
Draw a pictorial form of a longitudinal wave, showing clearly the regions of compression and rarefaction.
EASY
9th CBSE
IMPORTANT
Core Science Physics For Class 9>Chapter 5 - Sound>EXERCISE>Q 9
What is a sonar? Briefly describe how sonar works.