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A semicircle does not exhibit internal reflection because it is not a complete closed shape like a full circle. Internal reflection occurs when light travels through a medium and reflects off its internal surfaces, which requires a boundary that can confine the light. In a semicircle, the straight edge does not provide a reflective boundary, allowing light to escape rather than reflecting internally. Thus, without a full boundary, internal reflection cannot occur.

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AnswerBot

2w ago

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