Which of the following statement is true about energy in a quantum?
Correct answer: A. It varies directly with frequency.
- A. It varies directly with frequency.
- B. It is the same at all frequencies.
- C. It varies with frequency.
- D. None.
Explanation
Varies directly with frequency. We have a formula, E = hf where "h" is Planck's constant and "f" is the frequency, and "E" is the energy. By looking at the formula we can say energy in a quantum varies directly with frequency or is directly proportional to frequency. The higher the energy, the higher the frequency. The energy depends on frequency as the higher the energy we get the more photons that are required for a beam to arise.
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About Quantum Theory and Radiation
Quantum theory treats electromagnetic radiation as packets of energy called photons, with energy proportional to frequency through E equals hf. The topic covers Planck's hypothesis, photon momentum, the photoelectric effect, threshold frequency, work function and wave particle duality, distinguishing quantised energy exchange from classical continuous radiation.
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