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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Important Questions on Sound

EASY

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 $15 m / s$ . The siren on the car emits sound of frequency $250 H z$ . Calculate the recorded frequency. The speed of sound is $340 m / s$ .

HARD

11th Maharashtra Board

IMPORTANT

Physics>Chapter 8 - Sound>Exercises>Q 3

The sound emitted from the siren of an ambulance has frequency of

1500 Hz

. The speed of sound is

340 m / s

. Calculate the difference in frequencies heard by a stationary observer, when the ambulance initially, travels towards and then away from the observer at a speed of