The
stopping potential does not change with the radiation intensity
because the kinetic energy of photoelectrons (see (Figure)) does not depend on the radiation intensity.
Why is stopping potential independent of intensity?
The stopping potential does not change with the radiation intensity because
the kinetic energy of photoelectrons
(see Equation 6.3. 4) does not depend on the radiation intensity.
Does stopping potential depends on intensity?
Stopping potential does not depend on the intensity
of incident light. On increasing intensity, the value of saturated current increases, whereas the stopping potential remains unchanged. … Higher the frequency of incident light higher the value of stopping potential.
What does the stopping potential depends on?
In presence of stopping potential, the largest kinetic energy is the initial kinetic energy, which it has at the surface of electrodes. Thus the stopping potential depends upon
the frequency of the incident light and the material of the metal surface.
How does stopping potential depends on intensity of incident radiation?
Stopping potential
does not depend
on the intensity of incident light. On increasing intensity, the value of saturated current increases, whereas the stopping potential remains unchanged. … Higher the frequency of incident light higher the value of stopping potential.
How does intensity affect stopping voltage?
The intensity of the light has no effect on the maximum kinetic energy of the photoelectrons. Therefore, the
stopping voltage does not increase
.
Why stopping potential is same for different intensity?
Stopping potential does
not depend
on the intensity of incident light. On increasing intensity, the value of saturated current increases, whereas the stopping potential remains unchanged. Stopping potential does not depend on the intensity of incident radiation.
Why is the stopping potential negative?
A
negatively charged electron is repelled from a negatively charged plate
, and to climb ‘up’ that potential to reach the plate requires e×V energy (conveniently given in eV!). So, a positively charge plate will attract all emitted electrons, regardless of their kinetic energy upon leaving the solid.
Does stopping potential depends on nature?
The stopping potential is varying with frequency of incident light. An increase in frequency of the incident light will increase the kinetic energy of the emitted electrons, therefore greater retarding potential is needed to stop them. And also stopping potential depends on
the nature of material
.
Does stopping potential depends upon work function?
The stopping potential depends on
the kinetic energy of the electrons
, which will be affected only by the frequency of the incoming light and not by its intensity. … The minimum amount of energy that is required to eject an electron from the metal surface is known as the work function.
How does stopping potential depend on frequency?
The stopping potential does not depend on the intensity nor the number of incident photons but the stopping potential depends on
the frequency of the incident light
, the higher the frequency of the incident light higher the stopping potential or cut potential. It also depends on the kinetic energy of the electrons.
What is cut off or stopping potential?
Stopping potential or cut-off potential is defined as
the required potential for stopping the removal of an electron from a metal surface
when the incident light energy is greater than the work potential of the metal on which the incident light is focused.
Does stopping voltage increase with intensity?
The intensity of the light has no effect on the maximum kinetic energy of the photoelectrons. Therefore,
the stopping voltage does not increase
.
What is stopping voltage affected by?
The stopping voltage (or stopping potential) refers
to the voltage difference required to stop electrons from moving between plates and creating a current
in the photoelectric experiment. … The minimum amount of energy that is required to eject an electron from the metal surface is known as the work function.
What is the minimum energy required to remove an electron?
Ionization energy (IE)
is the minimum energy required to remove an electron from the nth state of a gaseous atom, molecule or ion.
How do you calculate stopping potential?
When the voltage equals the stopping potential, we know that the KE fo the ejected electrons just equals the potential energy at the collector or…
KE = PE hf – φ = qV
. This equation is very useful. For light shining on the metal, there is a minimum “cutoff” frequency before the ejected electrons have any KE.
