Wave Motion :: Discussion


4.If the length of a simple pendulum is increased by 2%, then the time period?
A.Increases by 1%
B.Decreases by 1%
C.Increases by 2%
D.Decreases by 2%
Answer:  Option  A
Explanation:

T∝√l
Percentage increase in time period,
∆T/T×100=1/2×∆l/l×100
=1/2×2%=1%.

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Published by:Michael Daani

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