The energy of a single photon of light that has a frequency of 9.28 × 10²² Hz is 6.15 × 10⁻¹³ Joule.
Photon energy
Photon energy is the energy radiated or absorbed by a single photon. The formula of photon energy is:
E = hν = hc/λ
Where
- E = photon energy (Joule)
- h = Planck’s constant (6.626 × 10⁻³⁴ Js)
- ν = photon frequency (Hz)
- c = speed of light (m/s)
- λ = photon wavelength (m)
Steps to calculate the energy of a single photon
Given:
ν = 9.28 × 10²² Hz
Asked:
E = ?
Answer:
E = hν
E = 6.63 × 10⁻³⁴ × 9.28 × 10²²
E = 61.53 × 10⁻¹²
E = 6.15 × 10⁻¹³ Joule
Thus, the energy of the single photon of light is 6.15 × 10⁻¹³ Joule.
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