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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 direction

C

have slightly different wavelengths

D

have slightly different amplitude

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The correct Answer is:
C
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NIKITA PUBLICATION-WAVE MOTION-Multiple Choice Questions
  1. When two tuning fork are sounded together produce x beats/s. The feque...

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  2. The prongs of the tuning fork are filled a little, the frequency of th...

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

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  4. Two sound waves of wavelengths 40 cm and 40.5 cm produce 10 beats per ...

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  5. A set of tuning forks is arranged in ascending order of frequency each...

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  6. Two sound waves of wavelengths 85/133 m and 85/137 m when sounded toge...

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  7. Two tuning forks A and B give 4 beats/s when sounded together. If the ...

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  8. Two tuning forks A and B produced 10 beats per second when sounded tog...

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  9. Two sound waves of wavelength 1 m and 1.01 m in a gas produce 10 beats...

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  10. A wave has SHM (simple harmonic motion) whose period is 4s while anoth...

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  11. Nine tuning forks are arranged in order of increasing frequency. Each ...

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  12. Two waves of wavelength 2 m and 2.02 m , with the same speed, superim...

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  13. A tuning fork A produces 4 beats/ s with tuning fork, B of fequency 25...

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  14. The ends of the prongs of a tunning forks originally in unison with a ...

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  15. If two tuning fork A and B are sounded together they produce 4 beats p...

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  16. If two tuning fork A and B are sounded together they produce 4 beats p...

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  17. Ten tuning forks are arranged in increasing order of frequency is such...

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  18. Beats are produced by two waves given by y(1)= a sin 2000 pi t and y(...

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  19. Two sound waves of wavelength 92/157 m and 92/155 m produce 8 beats/s,...

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  20. Beats are produced by two waves given by y(1)= a sin 2000 pi t and y(...

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