Question 52
Method: Part 2
1. Remove the screen and stand about 1 metre from the prism, in the same direction as the screen had been.
2. Move so that you are looking into the refracted rays with one eye. You may find it easier to cover the other eye.
3. Move from side to side so that you can see the different colours.
4. Increase the distance between your eye and the prism to about 2 metres.
5. Again, move from side to side so that you can see the different colours.
Added safety guidance: use only a teacher-approved low-power classroom ray box. Never look at the Sun, a laser or a bright beam. Keep walkways clear; do not touch a hot lamp. Use the screen method if viewing feels bright or uncomfortable.
1. Remove the screen and stand about 1 metre from the prism, in the same direction as the screen had been.
2. Move so that you are looking into the refracted rays with one eye. You may find it easier to cover the other eye.
3. Move from side to side so that you can see the different colours.
4. Increase the distance between your eye and the prism to about 2 metres.
5. Again, move from side to side so that you can see the different colours.
Added safety guidance: use only a teacher-approved low-power classroom ray box. Never look at the Sun, a laser or a bright beam. Keep walkways clear; do not touch a hot lamp. Use the screen method if viewing feels bright or uncomfortable.
