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Question

Dimensional formula for angular momentum.

A
[ML2T1]
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B
[ML2T]
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C
[M0LT2]
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D
[M0L0T0]
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Solution

The correct option is A [ML2T1]
Angular momentum for a point mass about an axis with velocity component of v perpendicular to the radial direction is given by:
Lp=mvr

Hence, dimensions of angular momentum is:
[Lp]=[M1] [L1T1] [L]
[Lp]=[M1L2T1]

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