Question

In which direction the light bends when it move from air into benzene solution?

Answer 1

towards the normal

Explanation:

when light ray entered from rarer medium to denser medium it bent towards the normal

rarer medium =Air

denser medium = Benzene

Answer 2

Answer:

Towards the Normal

Explanation:

Range of the refractive index of the benzene is $\approx (1.5 \,to\, 1.76)$. Where as the index of air is approximately 1. hence, benzene is denser medium than air.

Assume the angle made by light from the normal in air medium is $\theta_1$, and angle made by light in benzene medium is$\theta_2$.

By using snell's law,

$\frac{sin\theta_1}{sin\theta_2} = \mu_2/\mu_1 > 1.\\\implies sin\theta_1 > sin\theta_2\\\implies \theta_1 > \theta_2$

Hence, Light bents towards the normal.