explain the interesting pin hole camera of nature
and how does it show s the images of the sun
Answers
Answer:
SOME NATURAL PINHOLE CAMERAS - DEFINITION
concept
There is an interesting pin hole camera in Nature. When we pass under a tree covered with large number of leaves, we notice small patches of sun light under it These circular images are, in fact, pinhole images of the Sun.
The gaps between the leaves, act as the pin holes. These gaps are all kinds of irregular shapes, but, we can see circular images of the Sun.
PINHOLE CAMERA - DIAGRAM
concept
The pinhole camera works on the principle that light travels in a straight line. The image formed by a pinhole camera is real, inverted and diminished in size when compared to the original object. Pinhole cameras are inexpensive and are easy to make. An eclipse can be viewed using a pinhole camera.
Making a Pinhole Camera
1. Take two rectangular boxes that fit into one another without leaving any gap.
Cut open one side of each box.
2. Make a small hole in the larger box at the centre of the closed end opposite to the side that has been cut open.
3. Cut a square of side five centimetres in the smaller box in the closed end opposite to the side that has been cut open. Cover this square with tracing paper.
4. Finally, slide the smaller box into the larger box, ensuring that the pinhole and the tracing paper are in line with one another, but at the opposite ends.
5. Slide the smaller box to adjust the focus so that you can capture the image of any object you want.
6. Slide the smaller box to adjust the focus so that you can capture the image of any object you want.
Explanation: