Choose the correct length $( L )$ versus square of time period $\left( T ^2\right)$ graph for a simple pendulum executing simple harmonic motion.
A
B
C
D
JEE MAIN 2023, Easy
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C
c $T =2 \pi \sqrt{\frac{\ell}{ g }}$
$T ^2=\frac{4 \pi^2}{ g } \times \ell$
$T ^2 \propto \ell$
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