JEE Main 2024 Physics question
Light emerges out of a convex lens when a source of light kept at its focus. The shape of wavefront of the light is:
Answer: (D)
Solution
A point source at the focus gives a parallel beam, whose wavefront is plane.
Light emerges out of a convex lens when a source of light kept at its focus. The shape of wavefront of the light is:
A point source at the focus gives a parallel beam, whose wavefront is plane.