The formation of inverted image in a pin hole camera shows that:

1. light enables us to see
2. light travels in a straight line path
3. light can pass through the pin hole
4. light does not pass through the pin hole

light travels in a straight line path

Reason — The inverted image formed in a pinhole camera is due to the fact that light rays from the top and bottom of the object travel in straight lines through the tiny pinhole and cross over to form an upside-down (inverted) image on the screen inside the camera. This clearly demonstrates that light travels in a straight line path.