A glass plate with refractive index and thickness is surrounded by air and…

PHYSICS · Multi-part · A Level · Physics · Waves · Waves

Problem

A glass plate with refractive index

n=1.53

and thickness

0.485\,\mu\text{m}

is surrounded by air and illuminated normally by white light. (a) What wavelengths in air within the visible spectrum,

400\text{--}700\,\text{nm}

, are intensified in the reflected beam? (b) What wavelengths within the visible spectrum are intensified in the transmitted light?