What is a pinhole camera?

Question

Answer

A pinhole camera gives an upside down image it work on principle that light travels in a straight line

Answer

Pinhole Camera: An Overview

A pinhole camera is a simple type of camera that operates without a lens. It consists of a light-tight box or container with a small aperture (the 'pinhole') on one side and a photosensitive material on the opposite side. This setup allows for basic image formation through the principles of optics.

How It Works

The pinhole allows light to enter the box, projecting an inverted image of the outside scene onto the photosensitive surface inside.
Since light travels in straight lines, the image formed is a direct result of the arrangement of the objects outside the camera.
The size of the pinhole influences the sharpness and exposure of the image; a smaller hole produces a sharper image but requires longer exposure times.

Components of a Pinhole Camera

Light-tight Box: Prevents any light from leaking in except through the pinhole.
Pinhole Aperture: A small opening that allows light to pass through.
Photosensitive Material: Typically film or photographic paper that captures the image when exposed to light.

Advantages

Simplicity: Easy to construct and understand, making it ideal for educational purposes.
Low Cost: Requires minimal materials, making it accessible for experiments and projects.

Applications

Education: Used in teaching the basics of photography and optics.
Artistic Photography: Some artists use pinhole cameras for unique, soft-focus images.

In conclusion, a pinhole camera is an excellent tool for understanding the fundamentals of photography and light behavior.

Answer

A pinhole camera is made up from a box with one side cut out and replaced with the sheet of tracking paper.which acts as a screen as single pinhole is made in the side opposite the screen.when the pinhole is pointed at a light source such as a candle and image of the candle will appear on the screen.

Answer

It is detaily given in the text

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