as a plane wavefront propagates its radius of curvature increases or decreases?
Answers
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Answer:
As a plane wave front propagates its radius of curvature increases.
A plane wave front is a group of waves that travels in a plane and these waves are parallel to the direction of propagation of wavefront. In plane front when light is coming from the infinity source and it falls on the surface of the lens, radius of curvature changed and radius of curvature increases because curve of the wave is increase and radius of curve is taken as positive.