Physics-
General
Easy
Question
A parallel beam of light falls on a convex lens. The path of the rays is shown in the figure. It follows that

1 >
2 >
2
1 <
2 <
2
1 =
2 <
2
1 =
2 >
2
The correct answer is:
1 =
2 <
2
Since the ray does not bend at the first face of the lens, that is, it is not refracted,
1 =
. When this ray meets the second face, it bends toward the normal to that face. Hence
2 > 
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