When light travels from a rarer to denser medium, it loses some speed. Does the reduction in speed imply a reduction in the energy carried by the light wave ?

Explanation

To solve the question, we need to analyze the relationship between the speed of light, its frequency, and its energy as it travels from a rarer medium to a denser medium.

### Step-by-Step Solution:

1. **Understanding Light Propagation**:
- Light travels at different speeds in different media. In a rarer medium (like air), light travels faster than in a denser medium (like glass or water).

**Hint**: Remember that the speed of light is affected by the medium it travels through.
...