How will you use two identical prisms so that a narrow beam of white light incident on one prism
emerges out of the second prism as white light?
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Answer:
aai na firse ;)
Explanation:
When two identical prisms are placed in such a way that one is placed inverted with respect to the other and a narrow beam of white light is incident on one, it emerges out of the second prism as white light. Angle of deflections of the two prisms are equal and opposite.
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