Question

Soumen's teacher asked their class to make a pinhole camera by themselves. Soumen read the
activity 5 given in his textbook on how to make a pinhole camera. But he was unable to get the
image of a well-lit object. He was very upset. His elder brother on observing his pinhole camera
found that the hole made by him was quite large. He rectified Soumen's mistake and helped him
making another pinhole camera. Now, Soumen can see the image of the object.
(4)
(a) On which principle of light does a pinhole camera works?
(b) Why was Soumen unable to get the image of a well lit object?
(c) How does the formation of the image by a pinhole camera is affected by size of the hole?​

Answer 1

Answer:

(a) pinhole camera works on the principal of refraction of light.

(b) because he made some mistake in making camera, the proper information is not given in the para please check and ask one more time.

(c) Pichole camera works as the lens works. If the size of the hole is decreased the light rays coming from point will less enter through the lens and the image formed will not be clearer.