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A source of sound S is moving with a vel...

A source of sound S is moving with a velocity of `50m//s` towards a stationary observer. The observer measures the frequency of the source as 1000 Hz. What will be the apparent frequency of the source as 1000 Hz. What will be the apparent frequency of the source when it is moving away from the observer after crossing him? The velocity of the sound in the medium is `350m//s`

A

750 Hz

B

857 Hz

C

1143 Hz

D

1333 Hz

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The correct Answer is:
A
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TARGET PUBLICATION-WAVE MOTION -MCQ 7.1
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  2. A travelling wave passes a point of observation. At this point, the ti...

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  3. When a wave travels in a medium displacement of a particle is given by...

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  4. A wave is represented by the equation y = A sin(10pix + 15pit + (pi)...

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  5. A transverse wave of amplitude 0.5 m and wavelength 1 m and frequency ...

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  6. The equation of a wave is y=4 sin[(pi)/(2)(2t+(1)/(8)x)] where y ...

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  7. The equation of a wave is y =4 sin {(pi)/(2) (2t +(x)/(8))} ,where y,x...

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  8. The equation of a wave of amplitude 0.02 m and period 0.04 s travellin...

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  9. The path difference between the two waves y(1)=a(1) sin(omega t-(2pi...

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  10. The equation of a transverse travelling on a rope is given by y=10sinp...

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  11. A wave motion has the function y=a0sin(omegat-kx). The graph in figure...

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  12. The eqyation of wave is x= 5sin ((t)/( 0.4) -( x)/(4))cm the maximum...

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  13. The equation of sound wave travelling along negative X-direction is gi...

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  14. A progressive wave is represented by the equation y= 0.5 sin ( 314t- ...

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  15. A wave of frequency 400 Hz has a phase velocity of 300 m/s The phase d...

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  16. A prograssive wave of frequency 500 Hz is travelling with a speed of 3...

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  17. If the speed of the wave shown in the figure is 330m//s in the given m...

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  18. The equation of a wave is y=A sin (2pint) When it is reflected at a f...

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  19. A bat flying above lake emits ultrasonic sound of 100 kHz ,When this w...

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  20. Two waves are represented by y(1)= a sin (omega t + ( pi)/(6)) and y(...

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  21. Two waves represented by the following equations are travelling in the...

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