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AIEEE 2012 Solved Paper

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Question : 42

Total: 89

If a simple pendulum has significant amplitude (up to a factor of

of original ) only in the period between t=0s to t=τs, then τ may be called the average life of the pendulum When the spherical bob of the pendulum suffers a retardation (due to viscous drag) proportional to its velocity with b as the constant of proportionality, the average life time of the pendulum is (assuming damping is small) in seconds :

‌
0.693
b
b
‌
1
b
‌
2
b

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