JEE Main 2019 Physics question

A light wave is incident normally on a glass slab of refractive index 1.5. If 4% of light gets reflected and the amplitude of the electric field of the incident light is 30 V/m, then the amplitude of the electric field for the wave propagating in the glass medium will be:

• (A)6 V/m
• (B)10 V/m
• (C)30 V/m
• (D)24 V/mCorrect