EASY
9th Telangana Board
IMPORTANT
Earn 100

Which has larger frequency - infrasonic sound or ultrasonic sound?

Important Questions on Sound

MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 4
What do you understand by a sound wave?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 5
Why is soft furnishing avoided in concert halls?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 6
Define the wavelength of a sound wave. How is it related to the frequency and the wave speed?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 1
Does the sound follow same laws of reflection as light does?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 2
Two sources A and B vibrate with the same amplitude. They produce sounds of frequencies, 1 kHz and 30 kHz respectively. Which of the two waves will have larger power?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 3
You might have observed that sometimes your pet dog starts barking though no one is seen near in its surroundings or no disturbance heard nearby. Does this observation raise any doubts in your mind about the peculiar behaviour of dog after your understanding about 'range of hearing the sound'? If yes, write them.
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 4
With the help of a diagram describe how compression and rarefaction pulses are produced in air near a source of sound.
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 5
How are multiple reflections of sound helpful to doctors and engineers?