Sl. No.

Required item

Utility

1

Prism

It is the material whose refractive index is to be found

2

Glass Slab

3

Laser

Source of light to trace the path

4

Beaker

To hold water for apparent depth measurement

5

Coin

Acts as the object

6

Travelling microscope

Measure the extension

7

Water

Denser medium

8

Small paper piece

To find the height of water column

9

White paper sheets

To trace the path of light