Which of the following best explains why a pencil partially immersed in water appears bent at the surface?

Question

Which of the following best explains why a pencil partially immersed in water appears bent at the surface? — Exam MCQ

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D. Light changes direction as it moves from air to water — The correct choice is Light changes direction as it moves from air to water. It follows from the relevant Newtonian mechanics, motion, work, energy, power or simple-machine relationship.

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A. Water makes the pencil look thicker

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B. The pencil absorbs light and emits it at a different angle

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C. Light reflects off the pencil and back to your eyes

Which of the following best explains why a pencil partially immersed in water appears bent at the surface?

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