Q. The dimensional formula of $\frac{1}{\varepsilon_{0}}\frac{e^{2}}{hc}$ is
A) $\lbrack M^{0}L^{0}T^{0}A^{0}\rbrack$
B) $\lbrack M^{- 1}L^{3}T^{2}A\rbrack$
C) $\lbrack ML^{3}T^{- 4}A^{- 2}\rbrack$
D) $\lbrack M^{- 1}L^{- 3}T^{4}\rbrack$
Explanation
The formula for fine structure constant is $= \frac{e^{2}}{4\pi\varepsilon_{0}\left( \frac{h}{2\pi} \right)c}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.