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If a source sounding a whistle with a constant frequency moves in a circle and frequencies observed by observer O, when the source is at points A, B, C be `v_(a)`, v_(b)`, `v_(c)`,then

A

`v_(a) gt b_(b) gt v_(c)`

B

`v_(a) lt v_(b) lt v_(c)`

C

`v_(a) = v_(c) gt v_(b)`

D

none of the above

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A
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MOTION-SOUND WAVES-Exercise - 2
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  10. A person is standing at distance of r from a source of sound. The freq...

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  11. If the wavelength of light emitted by a star is shifted towards red en...

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  12. Two whistles Aand B produces notes of frequencies 660 Hz and 596 Hz re...

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  13. The frequency of a radar is 780 MHz. After getting reflected from an a...

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  16. An engine giving whistle is moving towards a stationary observer with ...

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  17. Velocity of sound in air is 332 m//sec . The shortest length of an ope...

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  18. two sound sources are moving in oppostive directions with velocities ...

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  19. engine as heard by an observer, when the engine moves towards the obse...

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