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Question

If the object is moved away from a pinhole camera, the size of image will___________.


A
increase
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B
decrease
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C
first increase then decrease
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D
remain same
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Solution

The correct option is B decrease
Following represents the size of the image formed before and after the position of the object is changed:

Before:


After:



From the above cases, we can conclude that the size of the image formed in the pinhole camera decreases when we move the object away from it.

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