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A boat at anchore is rocked by waves who...

A boat at anchore is rocked by waves whose crests are `100m` apart and velocity is `25 m//s` The boat bounces up once in every

A

2500s

B

75s

C

4s

D

0 . 25 s

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-SOUND WAVES-Exercise - 3 (Section - A)
  1. Which one of the following statements is true?

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  2. A boat at anchore is rocked by waves whose crests are 100m apart and v...

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  3. Two tuning forks P and Q when set vibrating give 4 beats per second. I...

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  4. For a wave propagating in medium, identify the property that is indepe...

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  5. When a guitar string is sounded with a 440 Hz tuning fork a beat frequ...

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  6. A person speaking normally produces a sound intensity of 40 dB at a di...

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  7. The driver of a car travelling with speed 30ms^-1 towards a hill sound...

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  8. A tuning fork of frequency 512 Hz makes 4 beats//s with the vibrating ...

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  9. Sounds waves travel at 350m//s through a warm air and at 3500m//s thro...

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  10. The identical piano wires kept under the same tension T have a fundame...

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  11. What is your observation when two source are emitting sound with frequ...

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  12. Two sources of sound placed closed to each other, are emitting progres...

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  13. When a string is divided into three segments of lengths l(1),l(2) a...

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  14. A source of unknown frequency gives 4 beats//s, when sounded with a so...

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  15. If we study the vibration of a pipe open at both ends, then the follow...

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  16. In astronomy, increase in wavelength due to doppler effect is known as...

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  17. If n(1), n(2 ) "and" n(3) are the fundamental frequencies of three seg...

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  18. The number of possible natural oscillations of air column in a pipe cl...

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  19. An astronomical object is moving with such a speed that red shift of 1...

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  20. The fundamental frequency of a closed organ pipe of length 20 cm is eq...

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