Question

What is fringe width?

Options

• The distance between the two narrow slits

• The distance between two consecutive bright fringes or two consecutive dark fringes

• The distance of the screen from the slits

• The path difference between waves reaching a point on the screen

Answer 1

Fringe width measures the spacing between successive fringes of the same type. It may be measured between consecutive bright fringes or consecutive dark fringes.