Question

A resonance tube is old and has jagged end. It is still used in the laboratory to determine velocity of sound in air. A tuning fork of frequency 512 Hz produces first resonance when the tube is filled with water to a mark 11 cm below a reference mark, near the open end of the tube. The experiment is repeated with another fork of frequency 256 Hz which produces first resonance when water reaches a mark 27 cm below the reference mark. The velocity of sound in air, obtained in the experiment, is close to :
(A) 322 ms⁻¹
(B) 341 ms⁻¹
(C) 335 ms⁻¹
(D) 328 ms⁻¹

Answer 1

(D) 328 m/s

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