A light ray enters from medium A to medium B as shown in Figure.

The refractive index of medium B relative to A will be

  1. greater than unity
  2. less than unity
  3. equal to unity
  4. zero

Answer

Since light rays in medium B goes towards normal. So it has greater restrictive index and lesser velocity of light with respect to medium A. So refractive index of medium B with respect to medium A is greater than unity.

The correct option is A.

Join our Mailing List

Money Back Guarantee

Your purchase includes 100% 7-day money back guarantee.

money-back-guarantee

If you are, for any reason, not entirely happy with your purchase, we will cheerfully issue you a full refund.