Question

List two things that happen when invisible waves of radiant energy come into contact 'with a solid.

Answer 1

Answer: they vibrate faster and becomes hotter

Explanation:

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Answer 2

When invisible waves of radiant energy come into contact with a solid, the particles in the solid vibrate faster. The solid becomes hotter. The solid can in turn, reradiate some of this energy back into the area where it is standing.