Topic 2
Refraction Notes

In Earth’s atmosphere, light travels at a speed of 300000 km/s.
When light travels through different mediums (substances or objects), it changes speed. Light bends or refracts when this happens.
The more dense the medium, the greater the angle that light will bend.

Example: Light will bend more when it passes through a diamond rather than water, because diamonds are more dense.
Q. Will light refract more in salt water or fresh water?