Question

The speed of light in a denser medium is more than in a rarer medium.

• A. True
• B. False

Answer 1

The correct option is B False

1. Light travels at different speeds in different media.
2. A medium in which light travels faster is called an optically rarer medium.
3. A medium in which light travels slower is called an optically denser medium.
4. For example, the speed of light in air is $3\times {10}^{8}m/s$.
5. The speed of light in glass is $2\times {10}^{8}m/s$.
6. Thus, glass is denser than air.
7. Thus, the speed of light in a rarer medium is more than in a denser medium.

Hence, the given statement is false.