Question

A rectangular solid piece is placed in a liquid whose refractive index is the same as that of the solid.Then:

• A. the sides of the solid will appear to be bent inward
• B. the sides of the solid will appear to be bent outward
• C. the solid will not be seen at all
• D. the solid will appear as in air

Answer 1

Answer: (C)

the solid will not be seen at all

Light from the solid piece will come undeflected at the interface of liquid and solid piece surface, because both have same refractive index. So, we will not be able to see the solid piece.