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LECTURE 31
questions before lecture
think about these
- Can you swing a given length pendulum with several amplitudes, or only one?
- When you increase the pitch of your voice (speak higher), does your voice get louder?
- Give an example of a device which detects light and converts it into an electric current (hint: your camera has one).
- Which has higher energy, a red photon or a blue photon?
- If an electron is bound, how much energy does it take to just exactly get it free?
- In all the equations we've had, there have appeared five fundamental constants of nature. Can you figure out what they are?
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Please email any questions, comments, or suggestions to
Professor Bernice Durand, bdurand@theory3.physics.wisc.edu.
Revised November 5, 1997.
Content © 1997, Bernice Durand
Images and layout © 1997, Shane Hamilton
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