Question

Write any four the necessary conditions for interference of light.

Answer 1

Hint: In order to get the answer you can give the answer regarding the color of the light, you can tell about slits, you can talk about direction, you can tell about frequency of light used etc. Doing this will solve your problem and will give you the conditions.

Complete Step-by-Step solution:
The conditions for the interference of light are as under.
(i) In interference the source of light should be monochromatic.
(ii) Here waves should be of the same frequency.
(iii) Direction of waves should also be the same.
(iv) The amplitudes of both the waves should also be the same.
(v) The slits of both the sources should be thin.

Additional Information:
Diffraction applies to a number of phenomena that arise when a wave meets an obstacle. In classical physics, the diffraction phenomenon is defined as the apparent bending of waves around small obstacles and the spreading of waves through small openings. Different effects arise as light waves pass through a medium with different refractive indexes or a sound wave through a medium with differing acoustic impedance. Diffraction happens in all waves, including sound waves, water waves, and electromagnetic waves, such as visible light, x-ray, and radio waves.Because physical objects have wave-like properties (at the atomic level), diffraction often happens with matter and can be studied according to the principles of quantum mechanics. The Italian scientist Francesco Maria Grimaldi coined the term diffraction and was the first to report detailed observations of this phenomenon in 1665.

Note - Throughout physics, interference is a phenomenon in which two waves are superimposed to create a resulting wave of greater or lesser amplitude. Interference typically refers to the interaction of waves that are associated or compatible with each other, either because they come from the same source or because they have the same (or nearly the same) frequency. Interference effects can be found in all types of waves, including light, radio, acoustics and surface waves. For chemistry, the applications of light interference are the most important to the study of matter.