Explanation
In this case, for photoelectric emission the wavelength of incident radiations must be less than 5200 Å. Wavelength of ultraviolet radiations is less then this value (5200 Å) but wavelength of infrared radiations is higher than this value.
Number of electrons can be measured which are directly proportional to the intensity of radiation.
Stopping potential does not depend on the relative distance between the source and the cell.
The momentum of the photon is energy/speed of light. In black holes the gravity pull is so high that even photons can’t escape.
For emission - of electrons incident energy of each photon must be greater than work function (threshold energy).
Kmax of photoelectrons doesn’t depend upon intensity of incident light.
Stopping potemntial depends upon the energy of photon
With decrease in wavelength of incident photons, energy of photoelectrons increases.
With the increase in intensity of light photoelectric current increases, but kinetic energy of ejected electron, stopping potential and work function remains unchanged.
Minimum kinetic energy is always zero.
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