Question 1 Report
The refractive index of liquid is 1.5. If the velocity of light in vacuum is 3.0 x 108ms-1, the velocity of light in the liquid is
Answer Details
n = speed in airspeed in glass speed in air speed in glass
1.5 = 3×104speed in glass 3 × 10 4 speed in glass
speed in glass = 2 x 108ms-1
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