1. Draw the ray diagram of refraction through a glass slab and hence prove that ( Angle i = Angle e)

Aim:- To draw ray diagram refracting through a glass slab and hence prove that ( Angle i = Angle e)

Apparatus:- Wooden board, glass slab, paper pin, needle, protractor, scale and pencil.

Observation:-

Angle i = 50^o

Angle e = 50^o

Angle r = 30^o

FG = 2.3 cm.

Conclusion:-

It is found that: Angle i = Angle e = 50^o.