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A man shouts loudly close to a high wall...

A man shouts loudly close to a high wall. He hears an echo. If the man is at 40 m from the wall, how long after the shout will the echo be heard? (speed of sound in air = 330 `m//s`)

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CHETANA PUBLICATION-SOUND-EXERCISE
  1. State medical applications of acoustics?

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  2. State applications of acoustics?

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  3. A man shouts loudly close to a high wall. He hears an echo. If the man...

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  4. An echo sounder in a fishing boat receives an echo from a shoal of fis...

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

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

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

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  8. Which are the major qualities of sound?

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  9. Explain the terms Pitch and Timbre.

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

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

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  12. Define Doppler effect for sound waves?

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

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

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

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

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

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

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

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

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