Question

Describe an experiment to show that light travel in a straight line

Answer 1

Explanation:Two experiments are used to demonstrate how light travels in straight lines. In the first example, the presenter arranges three pieces of card, with holes in, in an uneven line. The light stops and cannot travel through all three cards. When she arranges the holes in a straight line, the light can travel through.

Answer 2

Answer:

1. Get three cardboards with a hole at the center and mount them

2. Arrange them such that they form a straight line and place a lighted candle at one end

3. The flame could be seen from the other end.

4. Move any of the cardboards and observe what happens.

Observation:

The flame could be seen when the boards were in a straight line, but not when one was displaced slightly