Q. 43: A metal wire of diameter 1 mm is held on two knife edges separated by a distance of 50 cm. The tension in the wire is 100 N. The wire vibrates with its fundamental frequency and a vibrating tuning fork together produce 5 beat/s. The tension in the wire is then reduced to 81 N. When the two are excited, beats are heard at the same rate, then the frequency of the fork will be 45 Hz 100 Hz (c) (b) (d) 95 Hz. 50 Hz
Q. 43: A metal wire of diameter 1 mm is held on two knife edges separated by a distance of 50 cm. The tension in the wire is 100 N. The wire vibrates with its fundamental frequency and a vibrating tuning fork together produce 5 beat/s. The tension in the wire is then reduced to 81 N. When the two are excited, beats are heard at the same rate, then the frequency of the fork will be 45 Hz 100 Hz (c) (b) (d) 95 Hz. 50 Hz
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Transcribed Image Text:Q. 43: A metal wire of diameter 1 mm is held
on two knife edges separated by a distance of
50 cm. The tension in the wire is 100 N. The
wire vibrates with its fundamental frequency
and a vibrating tuning fork together produce
5 beat/s. The tension in the wire is then
reduced to 81 N. When the two are excited,
beats are heard at the same rate, then the
frequency of the fork will be
45 Hz
100 Hz
(c)
(b)
(d)
95 Hz
50 Hz
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