S. No.

Required item

Utility

1

Optical Rail

Holding the entire optical system (or components)

2

Diode LASER source

Generating the light waves

3

Slit (with micrometer)

Adjusting aperture thickness for light to pass

4

Convex lens (optional)

Magnifying interference pattern on screen

5

Detector and output measurement unit - Photodiode (mounted on a translation stage)

Measuring the photocurrent upon incident radiation at different positions

6

White screen with Vernier scale

Measuring relative positions of Intensity maxima and (or) minima