Question

Compare the working of a pinhole camera with the human eye .OR Compare the working of a pin-hole camera with that of a real
camera.

Answer 1

Answer:

in a pin hole camera light passes through the pin hole to the project an upside down image on to the back of the box and in the human eye light passes through the lens to project and upside down image on the back of the retina

Answer 2

To compare :

• Pinhole camera and Human eye .

So, let's first understand the working !

• Pinhole camera is a cuboidal device (box) in which there is a small hole in one side and the inside of the box is painted black.

• Human Eye is an advanced organ in the human body responsible for vision.

• In pinhole camera , light rays originating from the object passes through the hole on one side of the box and a real, inverted smaller image is produced on the screen on the inside of the box.

• In human eye, light rays originating from the object undergo diffraction at the lens and a real inverted image is formed at the retina (which acts as the focal plane).

Pin hole camera and Real camera:

• Pinhole camera working is discussed earlier.

• Real cameras use a convex lens, which produce a real image of the object by refraction.

$\star$ Refer to the diagram.