Einstein's photoelectric equation is given by:
Correct answer: A. hf - ϕ = ½ mv2
- A. hf - ϕ = ½ mv2
- B. E = hc2
- C. E = mc2
- D. hf = ½ mv2
Explanation
Explanation:Einstein's photoelectric equation states that the maximum energy of a photoelectron is equal to the difference between the work function and the energy of the incoming photon. This option is not correct. E=hc² is the equation for the total energy of a photon, where h is Planck's constant and c is the speed of light in a vaccum.This equation is related to the theory of relativity and does not directly apply to the photoelectric effect.This equation is not valid for any physical phenomenon.
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About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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