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?