To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab milky file with fill the observation table
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Fix the white sheet by drawing the pin on the drawing board.
Take a glass slab and keep it in the center of the paper and mark its boundary ABCD.
Draw a normal point on the face AB and make a line P Q, making an angle with the normal. PQ will show an incident ray.
Move between two pins at 1 cm or more between themselves on points 1 and 2 on the pub line.
The observation is as follows:-
- angle of incidence is 30
- angle of incidence is 45
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