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A point source of light is used in a photoelectric effect.If the source is removed farther from the emitting metal,the stopping potential
- a)will increases
- b)will decreases
- c)will remain constant
- d)will either increase or decrease
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
A point source of light is used in a photoelectric effect.If the sourc...
Explanation:
The stopping potential is the minimum potential that must be applied to a photocell to completely stop the flow of electrons.
When the point source of light is moved farther away from the emitting metal, the intensity of the light reaching the metal decreases. However, this does not affect the kinetic energy of the emitted electrons, as this is determined solely by the energy of the incident photons.
Therefore, the stopping potential will remain constant, as it is dependent only on the energy of the incident photons and the work function of the metal.
In summary, the distance of the point source of light from the emitting metal does not affect the stopping potential in a photoelectric effect, as long as the energy of the incident photons and the work function of the metal remain constant.
The stopping potential is the minimum potential that must be applied to a photocell to completely stop the flow of electrons.
When the point source of light is moved farther away from the emitting metal, the intensity of the light reaching the metal decreases. However, this does not affect the kinetic energy of the emitted electrons, as this is determined solely by the energy of the incident photons.
Therefore, the stopping potential will remain constant, as it is dependent only on the energy of the incident photons and the work function of the metal.
In summary, the distance of the point source of light from the emitting metal does not affect the stopping potential in a photoelectric effect, as long as the energy of the incident photons and the work function of the metal remain constant.
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Community Answer
A point source of light is used in a photoelectric effect.If the sourc...
Stopping potential depends on frequency of light by the equation- and not on intensity of the light so even if the source is moved farther it wont be affected and hence remains constant.
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A point source of light is used in a photoelectric effect.If the source is removed farther from the emitting metal,the stopping potentiala)will increasesb)will decreasesc)will remain constantd) will either increase or decreaseCorrect answer is option 'C'. Can you explain this answer?
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