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The energy of a photon of wavelength λ is:

1. hc/λ
2. hc/λh
3. λ/hc
4. hc/λc

Correct answer: hc/λ

Solution

The energy of a photon is given by the formula E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.

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