Pin-hole cameras

All Textbook Topics - Light - Pin-hole cameras

Did you know that images in pin-hole cameras are upside down? Pin-hole cameras are one of the most simple form of camera and fascinatingly simple devices. They are also very useful tools to investigate light rays in a real world scenario.

Textbook Learning Objectives
Click on each learning objective to access its associated textbook page.
1	The image on a pin-hole camera diagram must be drawn on the screen
2	The pinhole causes the image to be upside down on the screen as light travels in straight lines and the light coming from the top ends up at the bottom (and vice-versa)
3	When you make the pinhole camera longer, the image gets larger
4	When you make the pinhole camera shorter, the image gets smaller
5	When the distance between the pin-hole camera and the object decreases, the image gets larger
6	When the distance between the pin-hole camera and the object increases, the image gets smaller
7	When you make the pinhole bigger, you make the image brighter and blurrier
8	A smaller pin-hole will produce a sharper but dimmer image
9	If a pin-hole camera has two pin-holes, two images will appear on the screen