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In resonance column experiment to determine the velocity of sound, $L$ person observes first resonance at $12\;cm$. If she repeats the experiment on a very hot day her resonance column length would be

$(a)\;=12\;cm \\(b)\; > 12 \;cm\\(c)\; < 12\;cm\\(d)\;\text{may be any thing}$

1 Answer

As velocity of sound increases with increase in temperature the balancing length will also increase.
Hence length > 12 cm
Hence b is the correct answer.
answered Mar 18, 2014 by meena.p

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