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Question: Answered & Verified by Expert
A simple pendulum of length 1 is made to oscillate with amplitude of 45 degrees. The acceleration due to gravity is $\mathrm{g} .$ Let $T_{0}=2 \pi \sqrt{l / g}$. The time period of oscillation of this pendulum will be
PhysicsOscillationsKVPYKVPY 2015 (SB/SX)
Options:
  • A $\mathrm{T}_{0}$ irrespective of the amplitude
  • B slightly less than $T_{0}$
  • C Slightly more then $\mathrm{T}_{0}$
  • D Dependent on whether it swings in a plane aligned with the north-south or east west directions.
Solution:
2230 Upvotes Verified Answer
The correct answer is: Slightly more then $\mathrm{T}_{0}$
$T=2 \pi \sqrt{\frac{\ell}{g}}\left(1+\frac{\theta_{0}^{2}}{16}\right)$

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