A circular disc reaches from top to bottom of an inclined plane o… | JEE Main 2024 Physics PYQ

MCQMediumJEE Main 2024 · 6 April, Shift 1Rolling Motion & Rotational Kinematics

A circular disc reaches from top to bottom of an inclined plane of length $l$ . When it slips down, it takes $t$ seconds. When it rolls down, it takes $\left(\alpha/2\right)^{1/2} \times t$ seconds. Find $\alpha$ .

A
$2$
B
$3$
C
$4$
D
$5$

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