EASY
9th Telangana Board
IMPORTANT
Earn 100

Define the wavelength of a sound wave. How is it related to the frequency and the wave speed?

Important Questions on Sound

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?
HARD
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 1
Explain the working and applications of SONAR.
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 2
How do you appreciate efforts of a musician to produce melodious sound using a musical instrument by simultaneously controlling frequency and amplitude of the sounds produced by it?
MEDIUM
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Let us Improve our learning>Q 3
How do echoes in a normal room affect the quality of the sounds that we hear?