Light emerges out of a convex lens when a source
of light kept at its focus. The shape of wavefront of
the light is:
(1) Both spherical and cylindrical
(2) Cylindrical 
(3) Spherical
(4) Plane
                                                          JEE -2024
Solution:                
Light emerges out of a convex lens when a source of light kept at its focus. The shape of wavefront of the light is: (1) Both spherical and cylindrical (2) Cylindrical (3) Spherical (4) Plane JEE -2024

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