By an anodizing process, a transparent film of aluminium oxide of thickness `t = 250` nm and
Channel: Doubtnut
Date: 26/07/2020

By an anodizing process, a transparent film of aluminium oxide of thickness `t = 250` nm and index of refraction `n_(2) = 1.80 ` is deposited on a sheet  of polished aluminium What is the color of utenslis made from this sheet with observer in white light? Assume normal incidence of the light.