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The apparent change in the frequency n o...

The apparent change in the frequency n of the electromagnetic signal, sent from a rocket approaching the moon with velocity `v(v lt lt c)` , when it is received back by the rocket driver being reflected by the moon, is -

A

`((v)/(c))n`

B

`((2v)/(c))n`

C

`{((c +v)/(c))}n`

D

`((v)/(c))^(2) n`

Text Solution

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The correct Answer is:
B
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MOTION-SOUND WAVES-Exercise - 1
  1. A source of frequency n is moving with a uniform velocity v towards a ...

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  2. If an observer is moving with uniform velocity v to wards a stationary...

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  3. A source of sound crosses a stationary observer which is moving with u...

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  4. If a source of frequency n moving with velocity v crosses a stationary...

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  5. If a source of frequency n crosses a stationary observer with uniform ...

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  6. If an observer moving with velocity v crosses a stationary source of f...

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  7. A source of frequency n and an observer are moving on a straight line ...

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  8. Doppler effect in light differs with Doppler effect for sound, because...

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  9. The velocity of light emitted by a source S observed by an observer O ...

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  10. The width of spectral lines (spreading of spectral line) can be explai...

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  11. A star is receding from earth with a velocity 3 xx 10^(6) m//s . If t...

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  12. Due to the relative motion between a star and the earth, the following...

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  13. The apparent change in the frequency n of the electromagnetic signal, ...

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  14. The intensity ratio of two waves is 1 : 16. The ratio of their amplitu...

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  15. A tuning fork of frequency 250 Hz is vibrating at one end of a tube as...

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  16. Two loudspeakers L1 and L2 driven by a common oscillator and amplifier...

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  17. When a body of mass 25Kg is suspended from a sonometer wire then it vi...

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  18. The total mass of a sonometer wire remains constant. On increasing the...

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  19. The fundamental frequency of a sonometer wire carrying a block of mass...

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  20. Vibrating tuning fork of frequency n is placed near the open end of a ...

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