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Two identical source moving parallel to ...

Two identical source moving parallel to each other at seperation `'d'` are producing sounds of frequency `'f'` and are moving with constant velocity `v_(0)`. A stationary .observer `'O'` is on the line of motion of one of the sources. Then the variation of beat frequency heard by `O` with time is best represented by: (as they come from large distance and go to a large distance)

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE ENGLISH-SOUND WAVES-Exercise- 2 PART - I
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  2. The displacement of a medium in a sound wave is given by the equation ...

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  3. The ratio of the speed of sound in nitrogen gas to that in helium gas ...

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  4. Two monatomic ideal gas 1 and 2 of molecular masses m(1) and m(2) resp...

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  5. A closed pipe resonates at its fundmental frequency of 300 Hz. Which o...

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  6. A closed organ pipe and an open organ pipe have their first overtones...

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  7. An open pie is suddenly closed at one end with the result that the fre...

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  8. There is a set of four tuning forks , one with the lowest frequency vi...

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  9. Two sound sources produce progressive waves given by y(1) = 6 cos 1...

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  10. A fixed source of sound emitting a certain frequency appears as f(a) w...

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  11. When a train approaches a stationary observer, the apparent frequency ...

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  12. A police car moving at 22 m//s, chase a motoclist. The police man has ...

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  13. A siren placed at a railway platfrom is emitted sound of frequency 5 k...

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  14. A train moves towards a stationary observer with speed 34 m//s. The tr...

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  15. A train blowing its whistle moves with a constant velocity v away from...

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  16. In the case of sound waves, wind a blowing from source to reciver with...

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  17. Two sound sources emitting sound each of wavelength lambda are fixed a...

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  18. A car is approching a railway crossing at a speed of 72 kmph. It sound...

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  19. Two identical source moving parallel to each other at seperation 'd' a...

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  20. A source which is emitting sound of frequency f is initially at (-r,0)...

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