Wave Optics - SS1 Physics Past Questions and Answers - page 1

Interference of light waves is the superposition of two or more light waves, resulting in the formation of regions of constructive and destructive interference. It occurs when light waves from different sources or from the same source with different paths interfere with each other. Interference is a result of the wave nature of light, where the crests and troughs of the waves either reinforce or cancel each other out.

The characteristics of interference include the formation of interference patterns, where bright and dark regions are observed. Constructive interference occurs when the crests of two waves coincide, resulting in the reinforcement of the waves and the formation of bright regions. Destructive interference occurs when the crest of one wave coincides with the trough of another wave, resulting in the cancellation of the waves and the formation of dark regions.