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प्रश्न
Plot a graph to show the variation of stopping potential with frequency of incident radiation in relation to photoelectric effect.
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उत्तर १
Due to increase in frequency there is increase in K.E. of electron.
So stopping potential increases with increase in frequency of incides ralation.
उत्तर २
उत्तर ३
संबंधित प्रश्न
Light of frequency 7.21 × 1014 Hz is incident on a metal surface. Electrons with a maximum speed of 6.0 × 105 m/s are ejected from the surface. What is the threshold frequency for photoemission of electrons?
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Work function of aluminium is 4.2 eV. If two photons each of energy 2.5 eV are incident on its surface, will the emission of electrons take place? Justify your answer.
In the case of a photo electric effect experiment, explain the following facts, giving reasons.
The wave theory of light could not explain the existence of the threshold frequency.
Cathode rays can be deflected by
In photoelectric effect, the photoelectric current
What does wave theory predict about the existence of a threshold frequency?
In the wave picture, how does absorption of energy by an electron take place over the radiation?
What is observed about the timing of photoelectric emission?
