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Q & A: Do electrons deflect photons?

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Most recent answer: 03/24/2011
what happens when light enters any medium other than vaccuum?i mean photons interact with electrons and nucleus still their path never changes. why??
- Prasann Sethi (age 19)
New Delhi
I'm surprised you say "their path never changes". Think of what happens to light as it passes through a prism or a lens, or as it bounces off a mirror. Those interactions you mention do change the path of the light.

Mike W.

(published on 03/24/2011)

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