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To hear beats, it is essential that the ...

To hear beats, it is essential that the two sound waves in air should

A

be travelling in opposite directions

B

be travelling in the same directions

C

have slightly different amplitude

D

have slightly different wavelengths

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The correct Answer is:
D
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NARAYNA-WAVES-C.U.Q
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  2. If lambda(1), lamda(2)and lamda(3) are the wavelengths of the wave giv...

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  3. In closed pipes, the positions of antinodes are obtained at –

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  4. An open pipe of length l vibrates in fundamental mode. The pressure va...

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  5. Beats are produced by the superimposition of two waves of nearly equal...

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  6. When beats are formed by two waves of frequencies n(1) and n(2) the am...

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  7. Two wires are producing fundamental notes of the same frequency. Chang...

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  8. Beats are the result of

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  9. To hear beats, it is essential that the two sound waves in air should

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  10. When the beats are produced by vibration of two tunning forks of nearl...

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  11. A certain number of beats are heard when two tuning forks of natural f...

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  12. The frequency of sound reaching a stationery listener behind a moving ...

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  13. Red shift means

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  14. Doppler's effect in sound is due to

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  15. Doppler shift in frequency does not depend upon

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  16. An observer is moving away from a source at rest. The pitch of the not...

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  17. Doppler effect is not applicable

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  18. In Doppler effect, when a source moves towards a stationery observer, ...

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  19. When a source moves away from stationary observer with velocity v then...

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  20. A source of sound moves towards a stationary listener. The apparent pi...

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