1.

Velocity of light in glass whose refractive index with respect to air is 1.5 is\[2\times {{10}^{8}}m/s\] and in certain liquid the velocity of light found to be \[2.5\times {{10}^{8}}m/s\]. The refractive index of the liquid with respect to air is [CPMT 1978; MP PET/PMT 1988]

A. 0.64
B. 0.8
C. 1.2
D. 1.44
Answer» D. 1.44


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