Question

71.
The length of a simple pendulum is increased by 44%.
What is the percentage increase in its. time period
(1) 44%
(2) 44%
(3) 10%
(4) 20%​

Answer 1

Answer:

(4) 20% is the answer

Explanation:

length is increased by 44%,L'=1 .44L

new time period=T*[sqrt(1.44)]= 1.2T

Thus there is 20% increase in time period.

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