Published by:
CGP EDU Academic Team
Published on: September 12, 2026
If the length of the simple pendulum is increased by 44%, then what is the change in time period of pendulum
Text Solution
Verified by ExpertsThe correct answer is:
B
$T = 2 \pi \sqrt{\frac{l}{g}}$ $\Rightarrow \frac{T_2}{T_1} = \sqrt{\frac{l_2}{l_1}} = \sqrt{\frac{144}{100}} = \frac{12}{10}$
⇒ ⇒ T 2 = 1.2 T 1
Hence % increase $= \frac{T_2 - T_1}{T_1} \times 100 = 20\%$
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