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If in an experiment for determination of velocity of sound by resonance tube

If in an experiment for determination of velocity of sound by resonance tube method using a tuning fork of 512 Hz, first resonance was observed at 30.7 cm and second was obtained at 63.2 cm. Then maximum possible error in velocity of sound is

Options

(a) 204.8 cm/sec
(b) 102.4 cm/sec
(c) 51.2 cm/sec
(d) 161.3 cm/sec

Correct Answer:

51.2 cm/sec

Explanation:

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