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प्रश्न
Draw graphs showing variation of photoelectric current with applied voltage for two incident radiations of equal frequency and different intensities. Mark the graph for the radiation of higher intensity.
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उत्तर
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संबंधित प्रश्न
Is it always true that for two sources of equal intensity, the number of photons emitted in a given time are equal?
The work function of a metal is hv0. Light of frequency v falls on this metal. Photoelectric effect will take place only if
When stopping potential is applied in an experiment on photoelectric effect, no photoelectric is observed. This means that
If the frequency of light in a photoelectric experiment is doubled, the stopping potential will ______.
A photon of energy hv is absorbed by a free electron of a metal with work-function hv − φ.
Find the maximum magnitude of the linear momentum of a photoelectron emitted when a wavelength of 400 nm falls on a metal with work function 2.5 eV.
(Use h = 6.63 × 10-34J-s = 4.14 × 10-15 eV-s, c = 3 × 108 m/s and me = 9.1 × 10-31kg)
Define the term: stopping potential in the photoelectric effect.
Explain how does (i) photoelectric current and (ii) kinetic energy of the photoelectrons emitted in a photocell vary if the frequency of incident radiation is doubled, but keeping the intensity same?
Show the graphical variation in the above two cases.
Do all the electrons that absorb a photon come out as photoelectrons?
What is the effect of threshold frequency and stopping potential on increasing the frequency of the incident beam of light? Justify your answer.
