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Question
On passing through a prism, a parallel beam of sunlight splits into lights of several colours. Take a combination of two identical prisms as shown. A parallel beam of sunlight is incident on the face AD. The emergent light from the face BC, consists of:
On passing through a prism, a parallel beam of sunlight splits into lights of several colours. Take a combination of two identical prisms as shown. A parallel beam of sunlight is incident on the face AD. The emergent light from the face BC, consists of:
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Solution
The correct option is C a parallel beam of white light.
On passing through a prism, white light breaks into seven colours VIBGYOR. If the second identical prism is placed in a inverted position w.r.t the first prism the colours of the spectrum recombine and emerges as a parallel beam of white light.
On passing through a prism, white light breaks into seven colours VIBGYOR. If the second identical prism is placed in a inverted position w.r.t the first prism the colours of the spectrum recombine and emerges as a parallel beam of white light.
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