When a beam of white light is passed thr...

When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again ? Explain your answer.

A

By using white light rays

B

By using glass slab.

C

By adding one more prism erected.

D

By adding one more prism inverted.

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