Question

Magnification of image formed by a pinhole camera is the ratio of?

• A. The size of the object to that of the image
• B. The size of the image to that of the object
• C. The distance between the image and the pinhole to the height of the image.

Answer 1

The correct option is B

The size of the image to that of the object

1. The pinhole camera works on the principle of rectilinear propagation of light
2. A pinhole camera is "a simple camera without a lens and with a single small aperture."
3. Many pinhole cameras are as simple as a box with a hole in the side.
4. A pinhole camera's basic function is to produce an image.
5. With a pinhole camera, this image is usually upside down and varies in clarity.
6. The magnification produced by a pinhole camera is the ratio of the size of the image to the size of the object.
7. The formula to find the magnification is, $m=\frac{h_2}{h_1}$, where $h_2$= size of the image formed by the pinhole camera and $h_1$= size of the object.

Hence, option (B) is the correct option.