Question

what if a ray of light passes diagonally in the glass slab?​

Answer 1

Answer:

When a ray passes from air into glass the direction in which the light ray is travelling changes. ... This 'bending of a ray of light' when it passes from one substance into another substance is called refraction. The bending of a ray of light also occurs when the ray comes out of glass or water and passes into air.

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Answer 2

Answer:

If a ray of light hits the surface of a sheet of glass, some light will be reflected by the surface of the glass. ... The bending of a ray of light also occurs when the ray comes out of glass or water and passes into air.

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