Question

You are given kerosene oil, turpentine
oil and water having optical densities
1.44, 1.47 and 1.33 respectively. In which
of these medium the light travels fastest
and why?​

Answer 1

Answer:

The refractive index of kerosene oil, turpentine oil and water are 1.44, 1.47, 1.33 respectively. From the above statement we can say that the speed of light is maximum in water and minimum in turpentine oil.

In case of Kerosene the speed of the light will be greater than that of the turpentine but it will be less than water, since the refractive index of the kerosene is greater than water but less than turpentine.

The speed of the light in water will be highest in the given case as the refractive index is lowest of all thr.

Hence, it is proved that the speed of light in water is highest refractive index is high among three.

For all other materials to this condition will be valid..