Investigating the Laws of Reflection

Today in Science we did a practical about lights. We also learnt about reflections.

Aim: To investigate how light behaves when it hits a plane (flat) mirror.

Method:
1. Collect a ray box, power supply and single-slit ray slide from your teacher, and set them up to produce a single beam of light.

2. Place a plane mirror on the diagram of the protractor as described below.

3. Vary the angle of incidence and record the angle of reflection in the results table.

Result:

0 degrees = 0 degrees
10 degrees = 10 degrees
20 degrees = 20 degrees
30 degrees = 30 degrees
40 degrees = 40 degrees
50 degrees = 50 degrees
60 degrees = 60 degrees
70 degrees = 70 degrees
80 degrees = 80 degrees

The angle of reflection was the same as the angle of incidence. This could because the mirror we used was just flat and it didn't have any other shapes in it.