Ray Box

A ray box can be used to demonstrate the law of reflection as shown in the diagram below.

1. Put the mirror on top of a table vertically
2. Draw a normal line on top of the table meeting the vertical mirror at 90 degree as shown above
3. Place the Ray box at an incident angle i to the normal
4. Find the position of the reflected raw and insert a Pin.
5. Measure I and r
6. I=r

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