Romen's teacher asked their class to make a pinhole camera by themselves.
Romen read the activity 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 Romen's mistake and helped him in making
another pinhole camera. Now, Romen can see the image of the object.
(a) On which principle of light does a pinhole camera work?
(b) Why was Romen unable to get the image of a well-lit object?
(c) How is the formation of the image by a pinhole camera affected by size of
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