Photon Energy Calculator:

Enter the values of Planck constant h_{(6.6261 × 10}^-34 _J*s), Speed of Light c_{(299 792 458 m / s)}   & Wavelength λ_(m) to determine the value of Photon Energy E_(J).

Photon Energy Formula:

The Photon Energy E_(J) in Joules is Equal to the Planck constant h_{(6.6261 × 10}^-34 _J*s) in 6.6261*10^-34 Joules*second and Multiply the Speed of Light c_{(299792458 m / s)} in 29979458 meter per second and is Divided by the Wavelength of a Photon λ_(m) in meter.

The Photon Energy E_(J) in Joules is Equal to the Planck constant h_{(6.6261 × 10}^-34 _J*s) in 6.6261*10^-34 Joules*second and Multiply the Frequency of a Photon f_(Hz) in Hertz.

The Equation of Photon Energy can be written as,

E_(J) = h_{(6.6261 × 10}^-34 _J*s) * c_{(299 792 458 m / s)} / λ_(m)

(Or)

E_(J) = h_{(6.6261 × 10}^-34 _J*s) * f_(Hz)

Here,

E_(J) = Photon Energy in Joules

h_{(6.6261 × 10}^-34 _J*s) = Planck constant in 6.6261*10^-34 Joules*second

c_{(299 792 458 m / s)} = Speed of Light in 299792458 meter per second

λ_(m) = Wavelength of a Photon in meter

f_(Hz) = Frequency of a Photon in Hertz

Photon Energy Calculation:

1)Calculate the Photon Energy and given for the Planck constant = 6.6261*10^-34J*sec , Speed of Light = 299792458m/s , Wavelength of a Photon = 100m , Frequency of a Photon = 10Hz.

Answer

E = h * c / λ

E = 6.6261*10^-34 * 29979458 / 6

E = 1.9864689e-28J.

(Or)

E = h * f

E = 6.6261*10^-34 * 10

E = 6.6261e-33J.

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