A simple pendulum of length 0.4m has a period of 2s. What...
A simple pendulum of length 0.4m has a period of 2s. What is the period a similar pendulum of length 0.8m at the same place?
8s
4s
2√2s
√2s
Correct answer is C
T2 = √L2×T21L1
= √0.8×220.4
= 2√2s
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