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Homework_1 - Homework Homework#1, Due Jan 25, 2011 1...

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Unformatted text preview: Homework Homework #1, Due Jan 25, 2011 1. 2. 3. 4. 5. Estimate the typical energy of photons from (a) an FM radio station, (b) a microwave oven (λ = 0.01 m), (c) the sun and (d) a dental x ­ray (λ ~ 0.03 nm). JCM, page XXXVII, Problem 1. JCM, page XXXVII, Problem 2. JCM, page 20, problem 3. Ultra violet radiation with a wavelength of 200 nm is incident on an aluminum cathode (work function = 4.3 eV). How much voltage is needed to stop the ejected electrons? What happens when the intensity of the radiation is increased by a factor of 5? JCM, page 20, problem 8. 6. ...
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