A thick plane mirror shows a number of images of the filament of an electric bulb. Of these, the brightest image is the
Second
Fourth
The diagram below shows a ray of white light PQ coming from an object P and incident on the surface of a thick glass plane mirror
How many images will be formed and which image will be the brightest image.
When an illuminated object is held in front of a thick plane glass mirror, several images are seen, out of which the second image is brightest. Give reason.