What is the energy of a photon with a wavelength of 565 nm?

Energy of a Photon

The energy of a photon can be calculated using the equation:

E = hc / λ

Where:

  • E is the energy of the photon in joules (J).
  • h is Planck's constant, which is approximately 6.626 x 10-34 m2kg/s.
  • c is the speed of light in a vacuum, approximately 3.00 x 108 m/s.
  • λ is the wavelength of the photon in meters (m).

To find the energy of a photon with a wavelength of 565 nm (nanometers), we first convert the wavelength into meters:

565 nm = 565 x 10-9 m

Then, we substitute the values into the equation:

E = (6.626 x 10-34 m2kg/s) x (3.00 x 108 m/s) / (565 x 10-9 m)

After calculating, we find that:

E ≈ 3.52 x 10-19 J

This calculation shows that the energy of a photon with a wavelength of 565 nm is approximately 3.52 x 10-19 joules.

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