Question

light enters from air to kerosene having a refractive index of 1.47.what is the speed of light in kerosene ​

Answer 1

Answer:

refractive index=1.47

speed of light in air(V) = 3×10^8 m/sec

We have to find speed of light in kerosene

Refractive index= V / Speed of light in kerosene

Speed of light in kerosene= V/ Refractive index

Speed of light in kerosene= 3×10^8m/sec / 1.47

Speed of light in kerosene=3×10^10m/sec / 147

Speed of light in kerosene=0.0204×10^10m/sec

Speed of light in kerosene=2.04×10^8 m/sec