Question

In Young's double-slit experiment, if the width of the 2^nd bright fringe is 4 x 10^-2 cm, then the width of the 4^th bright fringe will be ______ cm.

Options

• 10^-2

• 3 x 10^-2

• 4 x 10^-2

• 1.5 x 10^-2

Answer 1

In Young's double-slit experiment, if the width of the 2^nd bright fringe is 4 x 10^-2 cm, then the width of the 4^th bright fringe will be 4 x 10^-2 cm.

Explanation:

The order of the fringe has no bearing on the width of the fringe.