p39_005 - f is the frequency of the light emitted, and is...

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5. Let R be the rate of photon emission (number of photons emitted per unit time) of the Sun and let E be the energy of a single photon. Then the power output of the Sun is given by P = RE .N o w E = hf = hc/λ ,where
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Unformatted text preview: f is the frequency of the light emitted, and is the wavelength. Thus P = Rhc/ and R = P hc = (550 nm)(3 . 9 10 26 W) (6 . 63 10 34 J s)(2 . 998 10 8 m / s) = 1 . 10 45 photons / s ....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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