Question

A glass slab is placed over a page on which the "word VIBGYOR is printed with each letter in its r corresponding colour, (i) Will the image of all the letters be in the same place? (ii) If not, state which, letter will be raised to the maximum. Give a reason for your answer.

Answer 1

(i) No, the images of letters of different colours will be raised by slightly different heights.

(ii) The letter V, corresponding to the violet colour will be raised to the maximum. This is  because, Apparent depth = real depth/n Now, n is maximum for the violet colour. Its apparent depth would, therefore, be the least. Hence, the violet colour (letter V) would be raised to the maximum.