Question

describe a pinhole camera.why is the image formed by it inverted​

Answer 1

Answer:

An inverted image is formed in a pinhole camera because the light rays coming from the top and bottom of the object intersect at the pinhole. Thus, we get an upside down image in a pinhole camera due to linear propagation of light through the hole of the pinhole camera.

Answer 2

the pinhole camera is the simplest kind of camera. It does not have a lens. It just makes use of a tiny opening (a pinhole-sized opening) to focus all light rays within the smallest possible area to obtain an image, as clearly as possible. The simple image formed using a pinhole camera is always inverted.

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1. The light ray which is coming from top of the tree goes towards the bottom of the pinhole camera screen through the pinhole.

2. The light ray which is coming from bottom of the tree goes towards the top of the pinhole camera screen through the pinhole.

3. In this way the light coming in a particular direction from each point of the tree, will be able to enter into the pinhole and the light going in other directions is blocked.

4. This leads the formation of an inverted images.

5. If we increase the size of the hole of pinhole camera, we get blurred image on the screen.