Question

when white light is incident on a glass slab and emerges after refraction it does not form a spectrum explain ​

Answer 1

Answer:

When light senses medium sense it forms a spectrum but in glass slab light enters from One side in other medium. Inside the medium there are chances of formation of visible spectrum . But as soon as light emerges out of the Slab the medium is again same (air) and in air light doesn't disperse