Question

What is the difference between diffraction and interference?

Answer 1

Diffraction	Interference
1. The phenomenon of bending light around the corners of an obstacle is called diffraction.	1. The overlapping or the superposition of two or more electromagnetic waves to form a resultant wave is called interference.
2. The width of the fringes is not equal in diffraction.	2. The width of the fringes on interference is equal.
3. While in it the contrast between maxima and minima is poor.	3. The contrast between maxima and minima is good.