How will you convert a transparent glass sheet into a translucent one ? Suggest any two ways to do it.What is a natural pinhole camera ? Explain how does it work.
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Answer:
There are following two methods to convert glass sheet into a translucent sheet:
By smearing a thin layer of oil on glass sheet.
By covering a side of sheet by butter paper.
Explanation:
A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect.
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