Two simple pendulums A and B have length 4 m and 9 m respectively and their bob weighs 9 N and 4.N respectively, then what would be the ratio of their time periods?
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Explanation:
T = 2π √(L/g)
time period of simple pendulum is directly proportional to the square root of length.
T(a) / T(b) = √4 / √9
ratio of the time period of pendulum A to B is 2/3
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