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Solution


Q.

A student has traced the path of a ray of light through a glass slab as follows. If you are asked to label 1, 2, 3 and 4, the correct sequencing of labeling ∠i, ∠e, ∠r and lateral displacement respectively is :
1 2, 1, 3, 4  
2 1, 2, 3, 4  
3 1, 3, 2, 4  
4 1, 3, 4, 2  

Ans.

(3)

Here 1 is angle of incidence, 3 is angle of emergence, 2 is the angle of refraction and 4 is the lateral displacement.