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Solution


Q.

Consider four mediums P, Q, R and S whose refractive indices are 2.14, 1.99, 2.98, and 2.16 respectively. Assume that if light travels from one medium to another. The rate of change will be utmost in which medium.
1 P to Q  
2 Q to R  
3 R to S  
4 S to P  

Ans.

(2)

As the difference in refractive indices is maximum.