Question

When light passes from water to kerosene then what will be happened

Answer 1

$\huge\mathfrak\red{Answer}$

Light can travel faster in water compared to that in kerosene.It is due to the fact that the refractive index of water is lower as compared to that of kerosene.And we know that the speed of light in a medium with lower refractive index can be higher.

Hence, the speed of light in water can be faster compared to that of kerosene.

kerosene is a denser liquid compared to water and hence light paths within it may get lost.

Answer 2

Answer: Speed of light reduces 0.92 times

Explanation:

Refractive index of kerosene is 1.44 and that of water is 1.33.

r = c/v

Where

r is refractive index of medium

c is velocity of light in air

v is velocity of light in medium

This can be written as :

c=vr which is a constant

v(w) * r(w) = v(k) * r(k)

w indicate water

k indicate kerosene

Now,

v(w) / v(k) = r(k) / r(w)

Substitute r values :

v(w) / v(k) = 1.08

ie v(k) = v(w) / 1.08

= 0.92 v(w)

When light passes from water to kerosene speed of light reduces to 0.92 times than in water