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From the following combinations of  physical constants (expressed through their usual symbols) the only combination, that would have the same value in different systems of units, is :

A. \frac{ch}{2\pi \epsilon _{0}^{2}}

B. \frac{e^{2}}{2\pi \epsilon _{0}\; Gm_{e}\; ^{2}}\; (m_{e}=mass\: of\: electron)

C. \frac{\mu _{0}\; \epsilon _{0}}{c^{2}}\frac{G}{he^{2}}

D. \frac{2\pi \sqrt{\mu _{0}\epsilon _{0}}}{ce^{2}}\frac{h}{G}

Answers (1)

best_answer

The question asks that the combination which has same value even if you change the unit.

It means the combination which is not affected by units that means the combination should be dimensionless.

Posted by

Vishwash Tetarwal

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