The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength 491nm is 0.71V. When the incident wavelength is changed to a new value, the stopping potential is found to be 1.43V. a) What is the work function for the surface? b) What is this new wavelength?
Compton effect
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Recoil Velocity
The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.
The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength 491nm is 0.71V. When the incident wavelength is changed to a new value, the stopping potential is found to be 1.43V.
a) What is the work function for the surface?
b) What is this new wavelength?
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