Question

A glass slab is placed over a piece of paper on which VIBGYOR is printed with each letter in its corresponding colour.

1. Will the images of all the letters be in the same place?
2. The letter of which colour appears to be raised maximum and of which colour minimum? Explain your answer.

Answer 1

(i) No, the images of all the letters will not be in the same place.

(ii) 

• Maximum raised: Violet letter.
• Minimum raised: Red letter.

Reason: Glass has the highest refractive index for violet and the lowest for red. A higher refractive index causes a greater upward shift.