Two narrow slits are 0.025 mm apart.When a laser shines on them,bright fringes form on a screen that is a meter away.These fringes are 1.3 cm apart.What is the separation between the m = 2 bright fringe and the central fringe?
A) 2.6 cm
B) 5.3 cm
C) 8.6 cm
D) 6.0 cm

Question

Quizplus · Accepted Answer

The separation between bright fringes is 1.3 cm. The m = 2 bright fringe is two fringe spacings away from the central fringe, so the separation is 2 * 1.3 cm = 2.6 cm.

Two Narrow Slits Are 0