Question 374: Dual Nature of Matter and Radiation

Question

The stopping potential of the photoelectrons, from a photo cell is

Accepted Answer

The stopping potential of photoelectrons is potential needed to stop the electrons from reaching the collector depends only on the frequency of incident radiation. It is directly proportional to it.
This is because, more the frequency of incident light, more will be the energy of the photons incident photons. $\quad(E=h 
u)$
Thus, more will be the energy (kinetic) acquired the electrons.
More the kinetic energy of emitted electrons, higher is the potential needed to stop them (stopping potential).

Answer

directly proportional to intensity of incident light

Answer

directly proportional to frequency of incident light

Answer

inversely proportional to frequency of incident light

Answer

Inversely proportional to intensity of incident light

Dual Nature of Matter and Radiation

The stopping potential of the photoelectrons, from a photo cell is

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