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CBSE Class 10 Answered

the white light passing through a glass slab must deviate and we should see spectrum but we can't why
Asked by Animesh Jain | 27 Feb, 2013, 06:48: PM
answered-by-expert Expert Answer
Yes the lights does diverge in the glass slab, but when it comes out of the other side of the glass slab, from a face which is parallel to the plane on which the light was incident.
thus they again refract by the same angle and merge forming white light again.
In case of prism, the other face is at different angle to the rays than the first face and hence they dont merge.
Answered by | 28 Feb, 2013, 08:32: PM

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