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String Fixed at Both Ends

38.A tuning f...

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38.A tuning fork of frequency 200Hz is in unison with a sonometer wire.The number of beats heard per second when the tension is increased by 1% is .

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Q. A stretched sonometer wire is in unison with a tuning fork. When the length is increased by 4%, the number of beats heard per second is 6. Find the frequency of the fork.

Q. A tuning fork of frequency

512 H z

is vibrated with a sonometer wire and

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beats per second are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is

Q. A tuning fork of frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is
(a) 506 Hz
(b) 512 Hz
(c) 518 Hz
(d) 524 Hz.

Q. A tuning fork produces

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beats /s with a sonometer wire. When tension in the wire is increased by

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beats/s produced with the same tuning fork, the frequency of the tuning fork is

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are heard when a tuning fork is sounded with sonometer wire under tension, when the length of the sonometer wire is either

0.95 m

1 m

. The frequency of the fork will be:

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