Question

Water is optically denser than glass.

• A. True
• B. False

Answer 1

The correct option is (B) False

1. More the optical density of a medium, less the speed of light in that medium.
2. Light travels faster in water than in glass. So, glass is optically denser than glass.
3. The refractive index of glass is $\frac{3}{2}$ and the refractive index of the water is $\frac{4}{3}$.

Hence the glass is optically denser than the water.