The unit of √2I/∈0 c is : (I = intensity of an electromagnetic wave,

Question

The unit of \(\sqrt{\frac{2I}{\in _0 \ C} }\) is :

(I = intensity of an electromagnetic wave, c \(:\) speed of light)

(1) Vm

(2) NC

(3) Nm

(4) \(NC^{-1}\)

Answer 1

Correct option is : (4) \(NC^{-1}\)

\(I = \frac{1}{2}\in_0\ E_0^2 \times C\)

\(E_0 = \sqrt{\frac{2I}{\in _0 \ C}}\)

\(E_0 : \text{electric field}\)

\(N/C\)