Question

Sort the following things with regard to the order of image formation in a pinhole camera.

• A. The pinhole
• B. Light rays
• C. The source object
• D. The screen

Answer 1

In a pinhole camera, the source object like a bulb or a candle emits the light rays which propagate through the pinhole. Pinhole camera works on the fact that light travels in straight lines – a principle called the rectilinear propagation of light. This makes the image upside down when caught on the screen.