Energy of a photon (22-26)

Question 1 of 3

Question

Wave frequency

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Question

Planck’s constant $= 6.62606957 \times 10–34 \mathrm{J} \bullet \mathrm{s}$

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Review

In 1905, the same year that he published his special theory of relativity, Albert Einstein proposed a simple but radical explanation for the strange behavior of the photoelectric effect. He suggested that light of frequency $f$ comes in small packets, each with an energy $E$ that is directly proportional to the frequency. Today these packets are called photons. We first encountered this idea in Section 22-4: