Question

# Planck's constant has the dimensions ___________.

A
ML3T1.
B
ML2T1.
C
ML6T1.
D
ML8T1.

Solution

## The correct option is C $$ML^2T^{-1}$$.Planck's constant, symbolized h, relates the energy in one quantum (photon) of electromagnetic radiation to the frequency of that radiation.$$h=\dfrac Ev=\dfrac{[ML^2T^{-2}]}{[T^{-1}]}=[ML^2T^{-1}]$$Physics

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