Question

(i) Calculate the energy, in electron volts, of a photon whose frequency is (a) 620 THz}, (b) 3.10GHz , and(c) 46.0 MHz

Answer 1

The energy in electron volts of the photons that has the following frequencies is as follows:

1. 620 THz = 2.564eV
2. 3.10GHz = 1.28 × 10-⁵eV
3. 46.0 MHz = 1.902 × 10-⁷eV

How to calculate energy?

The energy of a photon can be calculated using the following formula:

E = hf

Where;

• E = energy
• h = Planck's constant (6.626 × 10-³⁴ J/s)
• f = frequency

First, we convert the frequencies to hertz as follows;

• 620THz = 6.2 × 10¹⁴Hz
• 3.10GHz = 3.1 × 10⁹Hz
• 46.0MHz = 4.6 × 10⁷Hz

1. E = 6.626 × 10-³⁴ × 6.2 × 10¹⁴ = 2.564eV
2. E = 6.626 × 10-³⁴ × 3.1 × 10⁹ = 1.28 × 10-⁵eV
3. E = 6.626 × 10-³⁴ × 4.6 × 10⁷ = 1.902 × 10-⁷eV

Learn more about energy of a photon at: brainly.com/question/2393994

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