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JEE Advance 2006
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A massless rod is suspended by two identical strings AB and CD of equal length. A block of mass m is suspended from point O such that BO is equal to ' $x$ '. Further, it is observed that the frequency of $1^{\text {st }}$ harmonic (fundamental frequency) in AB is equal to $2^{\text {nd }}$ harmonic frequency in CD . Then, length of BO is
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Select the correct option:
A
$\mathrm{L} / 5$
B
$4 \mathrm{~L} / 5$
C
$3 \mathrm{~L} / 4$
D
$\mathrm{L} / 4$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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