Question

The diffraction pattern changes downstream in Fresnel Diffraction.

(a) True

(b) False

I got this question by my college professor while I was bunking the class.

The question is from Differences of Fresnel and Fraunhofer Diffraction in portion Diffraction of Engineering Physics II

Answer 1

Correct option is (a) True

The explanation: In the Fresnel Diffraction pattern, the intensity falls off rapidly without any maxima and minima. While in Fraunhofer Diffraction pattern, this is not the case.