Write any three difference between interference and diffraction.

Explanation

Interference:
1. Two or more waves travelling in a forward direction when superposed, form an interference pattern.
2. Two independent and coherent waves superpose to form interference pattern.
3. Interference fringes are of uniform intensity. All bright fringes are equally bright.
Diffraction:
1. Light bends around the corners of a sharp edge and encroach the region of shadow of an obstacle.
2. Secondary waves emerging from a single wave front result in diffraction pattern.
3. Central maximum has maximum width and subsequent secondary maxima have diminishing intensity.