Question

FIG. 16.2 Experiment to show that
light travels in a straight line​

Answer 1

Answer:

Light travels in straight lines. 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. ... Teachers could repeat the experiment shown in the clip, providing three cards with holes in them.

Explanation:

your problem's solution here