Question

ray of light travelling in a medium A (mew=1) enters medium B (mee =1.4) will the rat of light bend towards Or away from the normal in which medium speed of light explain​

Answer 1

Answer :

Here we ray of light would bend towards the normal

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• We see that the refractive index of medium A is 1 & the refractive index of medium B is 1.4

• So we may observe that the ray of light is entering from a rarer medium to a denser medium the ray of light bends towards the normal $\sf .$

• Similarly when the ray of light travels from a medium of denser medium to a rarer medium it bends away from the normal.

• Here as the refractive index of medium B is more than medium A it means that the light ray is travelling from a rarer medium to a denser medium.

• Hence here the ray of light would bend towards the normal.

Answer 2

Your Answer:-

The Ray of light bend towards the normal.$\:$

Explanation:-

Because, light doesn't have any fixed time to pass any object. It wishes to rush in the shortest time from the medium A to the medium B. This is Know as the optics of particles the principal of least Action(Fermant's principal).

Fermant's Principal:-

A ray of light in passing from one point to another by any number of reflections or refractions chooses a path along which the time taken is the least or minimum.