Correct option is C
- Refraction: When light travels from one medium to another with a different density, its speed changes, causing it to bend. This bending is called refraction.
The light ray will bend towards the normal as it travels from air into water.
- Denser Medium: Water is denser than air, meaning light travels slower in water.
- Bending: When light enters a denser medium (like water from air), it bends towards the normal. The normal is an imaginary line perpendicular to the surface at the point where the light enters.



