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Although you can see the pencil, it appears broken in the glass of water. This is because A) electromagnetic waves cannot travel through solids. B) electromagnetic waves travel at different speeds through different media. C) electromagnetic waves compress more when they travel through denser media. D) electromagnetic waves get closer together when they go through dense media like glass.

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The pencil appears broken because of refraction or, in other words, B.

Correct answer: B). Electromagnetic waves travel at different speeds through different media

This is because as light travels through one media it travels in a straight line, however, when it travels from one media to another media it bends, light path bends because of the phenomenon of refraction of light.

The refraction takes place only at the boundary, as the light continues to cross the boundary, it travels in a straight line.

So, as the portion of the pencil is submerged in water, the light will travel from water to air. Hence it appears to be broken because of refraction of light.



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