Ray Model of Light

Test Yourself:

1. What does the law state?

2. How is reflection on a smooth surface different from a rough surface?

Tip: This practical demonstrates that the distance between the mirror and the object is = the distance between the mirror and the image

Test Yourself: Practise drawing on paper and familiarise with these 3 steps

Think:

1. What causes refraction?

2. When the wheels enter the carpet perpendicularly, what happens to their speed?

3. When the wheels enter the carpet at an angle, what happens to the wheels at the front and the back? How does this affect their direction?

Think:

1. How does the refraction of different colours in light rays lead to rainbows?

2. What about 'double rainbows'?