Interference in Geometrical Optics

Questions and Answers

Explain the phenomenon of interference in the context of light waves.

Interference is the redistribution of light energy due to the superposition of light waves from two or more coherent sources.

What are the techniques for obtaining coherent rays for interference?

Coherent rays for interference can be obtained by division of wavefront and division of amplitude.

What are the conditions that need to be fulfilled to observe interference pattern?

The waves from the two sources must be of the same frequency (i.e. monochromatic) to observe interference pattern.

Provide examples of techniques for obtaining interference.

<p>Examples include Young’s double slit experiment, Fresnel’s biprism for division of wavefront, and Air wedge, Newton’s ring for division of amplitude.</p> Signup and view all the answers

Describe the method of obtaining interference through division of wavefront.

<p>In this method, a light wave front emerging from a narrow slit is divided into two secondary wave fronts after passing through two closely spaced slits placed side by side. These two wave fronts travel through different paths and reunite on a screen to produce a fringe pattern.</p> Signup and view all the answers