. the light that is transmitted is seen by the observer and appears coloured because some of the wavelengths of the visible spectrum are now missing. figure mauveine was the first ever synthetic dye. it was produced accidentally by william perkin in who was trying to synthesize quinine. it became particularly...
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, government of india ministry of information technology, government of india council of scientific and industrial research, government of india department of atomic energy, board of research in nuclear sciences, government of india university grants commission, government of india ministry of social...
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