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Question

# Match the following physical quantities with their respective dimensional formula:(a) Angular Momentum(e) [ML2Tâˆ’3](b) Impulse(f) [ML2Tâˆ’1](c) Pressure(g) [MLTâˆ’1](d) Power(h) [MLâˆ’1Tâˆ’2]

A
a-f, b-g, c-h, d-e
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B
a-f, b-g, c-e, d-h
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C
a-g, b-h, c-f, d-e
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D
a-g, b-h, c-e, d-f
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Solution

## The correct option is A a-f, b-g, c-h, d-eAngular momentum has formula J=mvr. Hence its dimensions are [J]=[ML2T−1]Impulse has a formula I=Ft. Hence its dimensions are [I]=[MLT−1]Pressure has a formula P=FA. Hence its dimensions are [P]=[ML−1T−2]Power has a formula W=Fv. Hence its dimensions are [W]=[ML2T−3]

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