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JEE Main 12 Jan 2019 Shift 2 Solved Paper

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Question : 22

Total: 90

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:

[12 Jan 2019 Shift 2]

328 ms–1
322 ms–1
341 ms–1
335 ms–1

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