The speed of light in vacuum is 3.0 x 108ms-1....
The speed of light in vacuum is 3.0 x 108ms-1. If the refractive index of a transparent liquid is 43, then the speed of light in the liquid is
0.44 x 10 8ms-1
2.25 x 10 8ms-1
3.0 x 10 8ms-1
4.0 x 10 8ms-1
4.33 x 10 8ms-1
Correct answer is B
n = speed in air speed in water
43 = 3×108v
v = 2.25 x 108ms-1
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