College Physics : Electromagnetic Spectrum

Study concepts, example questions & explanations for College Physics

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Example Questions

Example Question #1 : Electromagnetic Spectrum

An x-ray machine emits electromagnetic photons carrying a frequency of . What is the approximate energy carried by each photon?

Possible Answers:

Correct answer:

Explanation:

The energy of a photon of a given frequency is determined by the equation

, where  is Plank's constant 

So plug in Plank's constant and the frequency of the x-ray photons to get an energy of very near 

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