A ray of white light passes through a rectantular glass slab, entering and emerging at parallel faces. The angle of incidence, measured from the normal to the glaass surface, is large.

A ray of white light passes through a rectantular glass slab, entering

1.	A ray of white light passes through a rectantular glass slab, entering and emerging at parallel faces. The angle of incidence, measured from the normal to the glaass surface, is large.
Answer» White light will EMERGE from the slab. The light EMERGING from the slab will have a number of PARALLEL, coloured rays The emergent rays wil not form a spectrum on a screen. Colours will be seen if the emergent rays ENTER the eye directly. Answer :A::B::C

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A ray of white light passes through a rectantular glass slab, entering and emerging at parallel faces. The angle of incidence, measured from the normal to the glaass surface, is large.

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