Question

20. How can we recombine the components of white light after a

prism has separated them? Explain with the help of a neat

diagram.​

Answer 1

Answer:

we can recombine it again, This can be done by placing two glass prisms side by side. But, place the second glass prism in an inverted position. When white light passes through first prism it disperses the light into seven colours and when this beam of light enters the second prism which is placed in an inverted position, a white light is obtained when it comes out of the second prism.