EASY
11th Maharashtra Board
IMPORTANT
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A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m, calculate speed of sound.

Important Questions on Sound

EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
An echo-sounder in a fishing boat receives an echo from a shoal of fish 0.45 seconds after it was sent. If the speed of sound in water is 1500m/s, how deep is the shoal?
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
A girl stand 170m from a high wall and claps her hand at steady rate so that each clap coincides with the echo of the one before . If she makes 60 claps in 1 minute, what value should be the speed of sound in air?
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11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
A girl moves another location and finds that she should now make 45 claps in 1 minute to coincide with the successive echoes. Calculate her distance from the new position from the wall.
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
Sound wave A has a period of 0.015 seconds ,sound B has a period of 0.025 seconds.Which sound has greater frequency?
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
At what temperature will the speed of sound in air be 1.75 times its speed at N.T.P.?
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
A man standing between two parallel cliffs fires a gun. He hears two echoes one after 3 sec and other after 5 sec. The separation between the two cliffs is 1360 m, what is the speed of sound?
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11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3
If the velocity of sound in air at a given place on two different days of a given week are in the ratio 1:1.1. Assuming the temperatures on the two days to be same, what quantitative conclusion can you draw about the condition of the two days ?
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 8 - Sound>Exercises>Q 3

A police car travels towards a stationary observer at a speed of 15m/s. The siren on the car emits sound of frequency 250 Hz. Calculate the recorded frequency. The speed of sound is 340m/s.