To achieve the Fresnel class of diffraction, the wavefront required is

  1. cylindrical
  2. spherical
  3. planar
  4. bipolar


To achieve the Fresnel class of diffraction, the wavefront required is

To achieve the Fresnel class of diffraction, the wavefront required is spherical.

Types of diffraction

  1. Fraunhofer’s class of diffraction
  2. Fresnel class of diffraction

Fraunhofer’s class of diffraction

In this type of diffraction, the light source is far away from the slits that’s why the wavefront is planar.

Fresnel class of diffraction

In this type of diffraction, the light source is close to the slits that’s why the wavefront is spherical.

Note

generally, we use Fraunhofer’s class of diffraction.

This question is about MSc Waves and Optics MCQs. This is the previous year’s question about the competitive exams.


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MSC Physics MCQs
1.Classical Mechanics
2.Quantum Mechanics
3.Electromagnetic Theory
4.Atomic Physics
5.Nuclear Physics
6.Solid State Physics
7.Electronics Physics
8.Heat and Thermodynamics
9.Mathematical Method for Physics
10.Special Theory of Relativity
11.Physical Wave Optics
12.Waves and Oscillations

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