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In which of the following cases do we ob...

In which of the following cases do we obtain a spherical wave fron ?
a) sunlight focussed by a convex lens
b) light diverging from a straight slit
c) light emitted by a point source in an isotropic medium
d) a parallel beam of light reflected from a plane mirror

A

a, b only

B

b, c only

C

a, d only

D

a, c only

Text Solution

Verified by Experts

The correct Answer is:
D
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