Photon Energy



h: planck’s constant, f: frequency (Hz), λ: wavelength (m), c: speed of light





Condition To Have Photoelectric Effect



Λ: wavelength of the shining light, λo: photoelectric limit, W: emitted work (J)




Einstein's Equation About Photoelectric Effect



m: mass of photoelectron (kg), vo: maximum velocity of the photoelectron (m/s)