Table of Contents
Table of Contents
- Image Definition
- Pinhole Camera
- Construction of a Simple Pinhole Camera
- Working of a Pinhole Camera
- Solar Eclipse Definition
- Summary
- Did You Know?
- What’s Next?
In the previous segment we learned about the reason for the formation of shadows – light travels in a straight line.
In this segment, we will learn about how to capture an image of the Sun using a Pinhole camera.
What is an Image?
When we look in a mirror, we see a reflection of ourselves. This is an exact carbon copy of us. This copy is known as an Image.
Our image in a mirror
What is a Pinhole camera?
A Pinhole camera is a camera with no lens. Using this, we can capture the image of a distant light source like the sun, on a screen.
Image of the Sun through a pinhole camera
How to make a pinhole camera?
Take a cardboard paper and punch a small hole in its centre, using a pin. This is the simplest form of a pinhole camera.
How does a pinhole camera work?
Place the pinhole camera right above the ground such that the sun rays falling on the cardboard form a shadow on the ground. Now place a white sheet of paper where the shadow is formed. This paper will act as a screen to capture the image of the Sun. In the case of a pinhole camera, as the hole is small, only a little amount of sunlight can pass through it. Thus, we will observe a bright spot in the centre of the shadow. This is nothing but an image of the Sun.
What is a Solar eclipse?
