ch38-p001 - 1. Let R be the rate of photon emission (number...

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1. 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 . Now E = hf = hc / λ , where h = 6.626 × 10 –34 J·s is the Planck constant,
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