For a simple pendulum the graph between $L$ and $T$ will be.
A
Hyperbola
B
Parabola
C
A curved line
D
A straight line
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B
Parabola
b (b) $T = 2\pi \sqrt {\frac{l}{g}} $==> $l \propto {T^2}$ (Equation of parabola)
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