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O-LevelPhysicsLight5054/11 · May/June 2024 · Q261 Mark

A beam of white light is incident on a glass prism as shown in the diagram. X and Y are the two ends of the visible spectrum. Which statement is correct?

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AAll the light travels at the same speed in the prism.
BThe light at X has a lower frequency than the light at Y.
CThe light at X refracts more as it leaves the prism than the light at Y.
DThe white light refracts away from the normal as it enters the prism.

✓ Correct answer

B: The light at X has a lower frequency than the light at Y.

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About this question

Topic
Light, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2024 Paper 1 Variant 1, question 26.

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