A quantity f is given by f=hc5G where c is speed of light, G universal gravitational constant and h is the Planck’s constant . Dimensions of f is that of:

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energy

momentum

area

volume

answer is A.

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Detailed Solution

f=hc5Gwe know, dimension of h= M1L2T−1,c=M0L1T−1,G=M−1L3T−2∴f=M1L2T−1×M0L1T−15M−1L3T−2=M1L2T−2 which is the dimension of energy.

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