Question

You are given kerosene, turpentine and water. In
which of these does light travel the fastest?​

Answer 1

Answer:

Of all the three materials, water is the least refractive.Therefore, light travels fastest in water

Answer 2

Answer: light will travel faster in water.

Explanation: As we know speed of light it is inversely proportional to refractive index .So light will travel faster in water because refractive index of water(1.33) is low as compare to kerosene (1.44)and turpentine(1.47).