Question

White light is incident normally on a glass plate of thickness $500nm$ & refractive index of $\mathrm{1.5.}$ The wavelength (in nm) in the visible region that is strongly reflected by the plate is

• A. 400 nm
• B. 500 nm
• C. 600 nm
• D. 700 nm

Answer 1

Answer: (C)

Correct answer is (c) 600 nm