1.

If the length of a simple pendulum is increased by 2%, then the time period

Answer»

increases by 1%
DECREASES by 1%
increases by 2%
decreases by 2%

Solution :`l_(2) = 1.02 l_(1)`, Time period (T) `=2pi xx sqrt(l/g) prop sqrt(l)`
THEREFORE `T_(2)/T_(1) = sqrt(I_(2)/I_(1)) = sqrt((1.02 l_(1))/l_(1)) = 1.01`
THUS, time period INCREASED by 1%.


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