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Standard XII
Physics
Mirror Formula
An object loo...
Question
An object looks red when seen through a piece of red glass. What is the actual colour of the object? (1)Red only (2)White only (3)Red or green (4)Black
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Assertion :The colour of the green flower seen through red glass appears to be dark. Reason: Red glass transmits only the red light.
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Assertion :The colour of green object seen through red glass appears to be dark. Reason: Red glass absorbs all other light except the red colored light.
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If you look through a piece of red-tinted glass,everything is seen in shades of red. Similarly if you look through a price of blue-tinted glass. Everything will be seen in shades of blue.
Consider the following statements
I. The tinting process makes the glass absorb the corresponding colour, i.e., red tinted glass strongly absorbs red light, making ever thing appear red.
II. The tinting process makes the glass absorb all colours except the corresponding colour, i.e.,red -tinted glass will strongly absorb blue and green, but not red
III. If you stack the red and blue-tinted pieces of glass and look through them, everything will look quite dark.
Which of these statements is/are true?
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Why there is colours were seen on the TV (television) screen when we put the magnet closer? And why those colours are green and red only?
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