JEE PHYSICS MCQ: OSCILLATIONS

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A pendulum having time period equal to two seconds is called a seconds pendulum. Those used in pendulum clocks are of this type. Find the length of a seconds pendulum at a place where

g=\pi^2 \mathrm{~m} \mathrm{~s}^{-2}

View answer and explanation

Correct option: A

1 cm

The correct answer is 1 cm because the length of a seconds pendulum is calculated using the formula

T = 2\pi\sqrt{\frac{l}{g}}

with

T=2

seconds and

g=\pi^2 \mathrm{~m} \mathrm{~s}^{-2}

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