While measuring the speed of sound by performing a resonance column experiment, a student gets t...

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While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of \( 18 \mathrm{~cm} \) during winter. Repeating the same experiment during summer, she measures the column length to be \( \mathrm{x} \mathrm{cm} \) for the second resonance. Then
(a) \( 18x \)
(b) \( x54 \)
(c) \( 54x36 \)
(d) \( 36x18 \)
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