WHEN A RAY OF LIGHT TRAVELLING IN AIR ENTERS OBLIQUELY INTO A GLASS SLAB,IT IS OBSERVED THAT THE LIGHT RAY EMERGES PARALLEL TO THE INCIDENT RAY BUT IT IS SHIFTED SIDEWAYS SLIGHTLY.DRAW A RAY DIAGRAM TO ILLUSTRATE IT

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Solution

Dear student,
Lateral displacement occurs when refraction occurs.When light passes from a rear medium to a denser medium,the light changes its path.While entering the denser medium it goes near the normal and while coming out, it goes away from the normal.The amount of deviation in the path of the refracted ray is known as lateral displacement.
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