Draw the wavefront, if a point source is placed at point 2F of a conve

1.	Draw the wavefront, if a point source is placed at point 2F of a convex lens.
Answer» tion:A wavefront is a surface OBTAINED by joining all POINTS vibrating in the same phase. A ray is line drawn perpendicular to the wavefront in the direction of propagation of light WAVE. ... When a POINT source is placed at the focus of a convex LENS, the emerging light has plane wavefronts, as shown in Fig.

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Draw the wavefront, if a point source is placed at point 2F of a convex lens.

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