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How does the speed of light in a denser medium compare with its speed in a rarer medium?

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Question

How does the speed of light in a denser medium compare with its speed in a rarer medium?

Options

  • It is the same in both media.

  • It is greater in the denser medium.

  • It is independent of the medium.

  • It is lower in the denser medium.

MCQ
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Solution

The wave picture of light shows that light travels more slowly in a denser medium. Its speed is greater in the rarer medium.

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