A teacher uses two prisms placed in opposite orientations and passes a beam of white light through both. What is the expected outcome on a screen placed after the second prism?

Question

A teacher uses two prisms placed in opposite orientations and passes a beam of white light through both. What is the expected outcome on a screen placed after the second prism? — Exam MCQ

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C. A single white patch appears on the screen — The first prism disperses white light, while the inverted second prism recombines the colours, producing a white patch.

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A. A new set of colors emerge beyond the original ones

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B. A spectrum with reversed color order forms

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D. A black region appears where the beam ends

A teacher uses two prisms placed in opposite orientations and passes a beam of white light through both. What is the expected outcome on a screen placed after the second prism?

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