The dimensions of `e^(2)//4pi epsilon_(0)hc`, where `e, epsilon_(0),h` and `c` are electronic charge, electric permittivity, Planck’s constant and velocity of light in vacuum respectively

Options

A. `[M^(0) L^(0)T^(0)]`
B. `[M^(1) L^(0)T^(0)]`
C. `[M^(0) L^(1)T^(0)]`
D. `[M^(0) L^(0)T^(1)]`

Answer

A

Explanation

`e^2/(4piepsilon_0hc) = ([AT]^2)/([M^(-1)L^(-3)T^4A^2][ML^2T^(-1)][LT^(-1)])`