- A light wave enters a denser medium
- If a medium is denser , then the medium will be another medium
- Therefore, the light wave enters another densesr medium

- The light wave enters another densesr medium
- Refraction is when light passes from one medium to another medium
- So, the light is refracted when it enters another denser medium

Hence, the light is refracted when it enters another denser medium
[Question]What takes place as a light wave enters a denser medium?
[Context]- A light wave enters a denser medium 
- Refraction is when light passes from one medium to another medium 
- If a medium is denser , then the medium will be another medium