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.
(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. camera obscura

b. because he didn't find the lit object

c. because it saw the reflected image

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