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A girl stands 171 m away from a high wal...

A girl stands 171 m away from a high wall and claps her hands at a steady rate so each clap coincides with echo of the one before.
(I) If she claps 60 claps in 1 min what value should be the speed of sound in air ?
(II) Now, she moves to another location and finds that she should now make 40 claps in 1min. to coincides with successive echoes. Calculate the distance for the new position from the wall.

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CHETANA PUBLICATION-SOUND-EXERCISE
  1. An echo sounder in a fishing boat receives an echo from a shoal of fis...

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  2. A girl stands 170 m away from a high wall and claps her hands at a ste...

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  3. A girl stands 171 m away from a high wall and claps her hands at a ste...

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  4. A man standing between 2 parallel cliffsfires a gun. He hears 2 echoes...

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  5. Which are the major qualities of sound?

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  6. Explain the terms Pitch and Timbre.

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  7. Explain the term loudness. Give its unit and formula in decibel.

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  8. When heard independently, two sound waves produce sensation of 60 db a...

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  9. Define Doppler effect for sound waves?

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  10. What is essential for obtaining Doppler effect for sound waves?

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  11. What is the major difference between Doppler effect of sound and light...

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  12. What is the effect of wind on Doppler shift of sound waves? Does veloc...

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  13. Under which three conditions the changes in frequency can be studied u...

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  14. State common properties between Doppler effect of sound and light.

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  15. Under which conditions of motion between source and observer, Doppler ...

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  16. Derive an expression for apparent frequency when source is moving and ...

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  17. Derive an expression for apparent frequency when listener approaches a...

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  18. Write an expression for apparent frequency when both source and listen...

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  19. State the expression for apparent frequency : i. when source of sou...

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  20. State the expression for apparent frequency : i. when source of soun...

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