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A boat at anchor is rocked by waves whos...

A boat at anchor is rocked by waves whose crests are 100 m apart and velocity is 25 m/sec. The boat bounces up once in every

A

2500 s

B

75 s

C

4 s

D

`0.25 a`

Text Solution

Verified by Experts

The correct Answer is:
C
We know, `v = (lamda)/(T) implies T =(lamda)/(v) = (100)/(25) =4s `
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KUMAR PRAKASHAN-WAVES-SECTION-E (Multiple Choice Questions (MCQs)) (MCQs asked in Gujarat Board and Competitive Exams)
  1. An organ pipe closed at one end has fundamental frequency of 1500 Hz. ...

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  2. A stone thrown into still water, creates a circular wave pattern movin...

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

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  4. When a guitar string is sounded with a 440 Hz tuning fork, a beat freq...

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  5. A siren emitting sound of frequency 800 Hz is going away from a static...

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  6. Two closed organ pipes of length 100 cm and 101 cm produce 16 beats in...

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  7. The second overtone of an open pipe has the same frequency as the firs...

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  8. What is your observation when two sources are emitting sound with freq...

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  9. If man were standing unsymmetrically between parallel cliffs, claps hi...

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  10. A uniform string is vibrating with a fundamental frequency 'f. The new...

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  11. Five sinusoidal waves have the same frequency 500 Hz but their amplitu...

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  12. Mention the range of audible range for the humans.

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  13. Among following media, sound has its maximum velocity in ......

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  14. What should be minimum distance between listener and reflecting surfac...

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  15. Equation of a wave propagating on a string is y =3 cos {pi (100 t - x)...

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  16. Path different between waves y(1) = A(1) sin (omega t - (2pix)/(lamd...

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  17. Reason for increase in the intensity of sound during night time is ......

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  18. If resultant wave of two waves, each of amplitude A is also A then, ph...

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  19. Magnitude of wave vector of an e.m.wave with frequency 150 MHz is .......

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  20. For stationary waves produced in a string of length I wavelength in th...

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