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In resonance apparatus for determining t...

In resonance apparatus for determining the velocity of sound in air, a turnning fork of frequency 320 Hz is used. A loud sound is heard when water level is at 24.8 cm and then at 78.5 cm. These lengths are called the first and second resonance lengths of air column in the resonance apparatus. Calculate the velocity of sound in air within the limits of permissiblr error.

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