How did Fresnel construct a biprism in order to study interference of light ?

During interference of light

Diffraction and interference of light refers to -

Diffraction and interference of light refers to -

When interference of light takes place

Draw a neat and labelled diagram of an experimental setup of Young.s double slit experiment to study the interference of light and show that: beta= (lambdaD)/(d) Where the terms have their usual meaning. Show intensity variation in the interference pattern graphically.

State one condition for obtaining a sustained interference of light.

Why coherent sources are required to create interference of light ? Explain how Fresnel biprism is used to obtain two coherent sources of light.

(i) In Young's double slit experiment the condition for (a) constructive and (b ) destructive interference at a point on the screen .

In Young's double-slit experiment, the point source is placed slightly off the central axis shown in Fig. 2.45. a. Find the nature and order of the interference at point P. b. Find the nature and order of the interference at point. O.

State the necessary conditions for the constructive and the destructive interference.