Question

Does light move along straight lines? Describe an experiment in support of your answer.

Answer 1

1. Yes, light move along straight lines.
2. Take some small cardboard pieces to see if the light goes in a straight path or not.
3. All of the cards should have a hole punched in the center.
4. Make sure all of the cards are the same size.
5. Place the cards in a line (vertically) with equal spacing between them.
6. Now turn off the light and use a flashlight to shine light through the holes you've formed.
7. The light can be seen travelling through the hole of the cards in a single line.
8. From this experiment we can conclude that light travels in a straight-line path.