Question

The brightest and largest fringe in the centre of an interference pattern is known as?

• A. coherence
• B. constructive interference
• C. central maximum
• D. destructive interference

Answer 1

Answer:

C. central maximum

The brightest and largest fringe in the center of an interference pattern is called the central maximum or central bright fringe. It's where the waves from the two sources interfere constructively, resulting in the highest intensity. At the centre the fringe will have maximum intensity which is known as a central maximum. if we use monochromatic light then these fringes can be distinguished using the fact that it will be the brightest among the bright fringes. At the centre path difference is 0.