Q78 / 90 · JEE Main 2024 (05 Apr Shift 1) · Physics

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
both spherical and cylindrical
Correct answer
B
plane
C
spherical
D
cylindrical

Solution

Light emerges parallel $\therefore$ planor wavefront

Hence, the correct answer is option: 'B'.

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