Table of Contents
- Light Travels in a Straight Line
- Shadow Formation
- Summary
- Did You Know?
- What’s Next?
In our previous segment, we learned about the formation of shadows when light rays fall on opaque objects. In this segment, we will learn about another reason for the formation of shadows – light travels in a straight line.
Does light travel in a straight line?
Take 2 pipes, one straight and one bent. Look at the flame of a burning candle through both the pipes separately.
We notice that we can see the flame through the straight pipe.
Looking at a flame through a straight pipe
But we cannot see the flame through the bent pipe. We can use pipes having different kinds of bends, the result will be the same.
