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Question

# The dimensional formula for plank's constant and angular momentum are

A
[ML2T2]and[MLT1]
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B
[ML2T1]and[ML2T1]
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C
[ML3T1]and[ML2T2]
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D
[ML2T1]and[ML2T2]
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Solution

## The correct option is B [ML2T−1]and[ML2T−1]Planck's constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the frequency of that radiation.h=Ev=[ML2T−2][T−1]=[ML2T−1]Angular momentum = Moment of inertia × Angular velocity (Angular momentum)=[ML2][T−1]=[ML2T−1]So, correct answer is option (B).

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