Question

A diver from inside water (${\mu }_{water}=1.33$) looks at an object which is placed in air and whose natural colour is green. Then colour of object seen by diver will be :

• A. red
• B. blue
• C. green
• D. yellow

Answer 1

Answer: (C)

green

$\begin{array}{c}\text{- Colour of light is determined by its frequency}\\ \text{and frequency does not change on change of}\\ \text{medium. So, the colour will also not change}\\ \text{and will remains green.}\\ \text{Hence, (c) is correct option.}\end{array}$