5. Answer the following questions in 60-80 words:
(4 x 4 = 16 marks)
a) Shoaib has a pinhole camera and a plane mirror. He observes a 10 cm pencil
using both. Describe the differences in the image formed by the plane mirror and the
image formed by the pinhole camera.
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the image formed by a plane mirror is erect and equal to the size of an object but in a pinhole camera the size depend on the distance of the screen the image of a plane mirror is always virtual and cannot be obtained on a screen where as an image of a pinhole camera is real and can be obtained on a screen
in a pinhole camera the the size of the image is is always smaller as compare to the object but in a plane mirror the image is of equal size as the object
the image of a pinhole camera may not be e very clear but the image of a plane mirror is is very clear
hope it will help you
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