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AIIMS2001Physics-Rotational Motion

AIIMS 2001 Physics Angular Momentum MCQ Question

Type: MCQ-numerical-Hard-Class 11

If the earth is treated as a sphere of radius R and mass M, its angular momentum about the axis of its rotation with period T, is

A

$\frac{MR²T}{2\pi}$

B

$\frac{4\pi MR²}{5T}$

C

$\frac{\pi MR³}{T}$

D

$\frac{2\pi MR²}{T}$

Correct Answer

Option B

Detailed Explanation

The angular momentum L is given by Iω, where I is the moment of inertia ( $\frac{2}{5}MR²$ ) and ω is the angular velocity ( $\frac{2\pi}{T}$ ).

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