Question

In Fresnel diffraction, the relative phase difference between the curved wavefront is​

Answer 1

Answer:

-The relative phase difference for a curved wavefront is not constant. -Amplitudes of the individual light waves (secondary wavefronts) at the observation point are not equal because the distances traveled by each element, or wavefront, can no longer be considered approximately equal.

Answer 2

Non-constant

Since the radii of each half period zone are different, the distance traveled by each wavefront is different. Thus, the relative phase difference turns out to be non-constant