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An observer standing at the sea coast ob...

An observer standing at the sea coast observes 54 waves reaching the coast every minute. If the wave number is `10//metre`, the wave velocity is

A

`11.1 m//s`

B

`10 m//s`

C

`9 m//s`

D

`6 m//s`

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TARGET PUBLICATION-Sound-Exercise
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  2. The number of waves contained in unit length of the medium is called

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  3. An observer standing at the sea coast observes 54 waves reaching the c...

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  4. The propagation of sound waves is not possible in space because

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  5. In an orchestra, the musical sounds of different instruments are disti...

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  6. A stone is dropped into a lake from a tower 500 metre high. The sound ...

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  7. Consider the following I. Waves created on the surfaces of a water p...

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  8. An earthquake generates both transverse (S) and longitudinal (P) sound...

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  9. A light pointer fixed to one prong of a tuning fork touches a vertical...

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  10. It is possible to distinguish between the transverse and longitudinal ...

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  11. When an aeroplane attains a speed higher than the velocity of sound in...

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  12. It takes 2.0 seconds for a sound wave to travel between two fixed poin...

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  13. Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen an...

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  14. A string of mass 2.5 kg is under a tension of 200 N The length of the ...

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  15. Water waves produced by a motor boat sailing in water are

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  16. A man standing between two cliffs claps his hands and starts hearing s...

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  17. When we hear a sound, we can identify its source from .

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  18. Choose the correct option? The distance between two consecutive crest...

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  19. A source of sound of frequency 512 Hz is placed inside water. The spee...

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  20. A man is standing between two parallel cliffs and fires a gun. If he h...

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