An air column, closed at one end and open at the other, resonates with a tuning fork when the sm...

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An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is \( 50 \mathrm{~cm} \). The next larger length of the column resonating with the same tuning fork is
(a) \( 100 \mathrm{~cm} \)
(b) \( 150 \mathrm{~cm} \)
(c) \( 200 \mathrm{~cm} \)
(d) \( 66.7 \mathrm{~cm} \)
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