If the constant of gravitation $(G)$, Planck's constant $(h)$ and the velocity of light $(c)$ be chosen as fundamental units. The dimension of the radius of gyration is
A${h^{1/2}}{c^{ - 3/2}}{G^{1/2}}$
B${h^{1/2}}{c^{3/2}}{G^{1/2}}$
C${h^{1/2}}{c^{ - 3/2}}{G^{ - 1/2}}$
D${h^{ - 1/2}}{c^{ - 3/2}}{G^{1/2}}$
Diffcult
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A${h^{1/2}}{c^{ - 3/2}}{G^{1/2}}$
a (a) Let radius of gyration $[k] \propto {[h]^x}{[c]^y}{[G]^z}$
So dimension of radius of gyration are ${[h]^{1/2}}{[c]^{ - 3/2}}{[G]^{1/2}}$
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