The refractive indices of four substances P, Q, R and S are 1.50,1.36,1.77 and 1.31 respectively.
The refractive indices of four substances P, Q, R and S are 1.50,1.36,1.77 and 1.31 respectively. The speed of light is the minimum in the substance.
A) S
B) R
C) Q
D) P
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