When a tuning fork (frequency \( 262 \mathrm{~Hz} \) ) is struck, i...

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When a tuning fork (frequency \( 262 \mathrm{~Hz} \) ) is struck, it
P loses half of its energy after \( 4 \mathrm{~s} \). The decay time \( (\tau) \)

W and \( Q \)-factor for this tuning fork respectively are (Given, \( \ln 2=0.693 \) )
(1) \( 4.77 \mathrm{~s}, 10.5 \times 10^{3} \)
(2) \( 5.77 \mathrm{~s}, 9.5 \times 10^{3} \)
(3) \( 6.77 \mathrm{~s}, 11.5 \times 10^{3} \)
(4) \( 2.77 \mathrm{~s}, 8.5 \times 10^{3} \)
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