S. No.

Required item

Utility

1

Optical Rail

Holding the entire optical system (or components)

2

polarizers

Convert unpolarized light to polarized

3

Wave plate

determine polarization state

4

Laser source

Emits laser light

5

photodetector

Measuring intensity of beam after passing through wave plate

6

White screen with Vernier scale

Measuring relative positions of Intensity maxima and (or) minima