A tuning fork of frequency 480 Hz is used in an experiment for measuring the speed of
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Question:
A tuning fork of frequency 480 Hz is used in an experiment for measuring the speed of sound(v) in the air by the resonance tube method. Resonance is observed to occur at successive lengths of the air column, l1 = 30 cm and l2 = 70 cm. Then v is equal to
(a) 332 m/s
(b) 384 m/s
(c) 338 m/s
(d) 379 m/s
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