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NEET 2018 Physics and Chemistry

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Question : 1

Total: 90

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27°C two successive resonances are produced at 20 cm and 73 cm of column length.If the frequency of the tuning fork is 320 Hz,the velocity of sound in air at 27°C is

330 m/s
339 m/s
300 m/s
350 m/s

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