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Madhumathy posted an Question
July 14, 2020 • 16:40 pm
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30 points
30 points
- IIT JAM
- Chemistry (CY)
when the frequency increases, the number of photons being absorbed by the metal remained constant as well.
if the frequency increases and number of photos ejected remain same. the rate of ejection should increase . because frequency is in inverse relation with time. but here it is not so. can u kindly explain me this
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Dinesh khalmaniya 1
yes, it's correct so what's your doubt??
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sir can you clearly differentiate between intensity and frequency.i keep on mixing up them.
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if you consider light is wave, intensity is related to light radiation energy and frequency is the number of waves per second. ... Frequency is related to photon's energy (E = hν , E is energy, h is planck's constant and ν is frequency) . In particle nature, intensity is related to number of photons in the radiation
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Priyanshu kumar
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the current is independent of the frequency of illuminated light but it depends on the intensity of light used in the process. While more intensity of light results in more number of photons hitting the surface and this enhances the flow of large number of electrons...so current is dependent on intensity of illuminated light
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got madhumathy....here if we constant light amplitude then then the photon absorbed by the metal is also constant because intensity is kept constant...so however if we increase light frequency it has no influence on the electric current ..so it is independent
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if any doubt still persist then please ask and clear your doubt🙏
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Dinesh khalmaniya 1 Best Answer
The kinetic energy of photoelectrons increases with light frequency. Electric current remains constant as light frequency increases. Electric current increases with light amplitude. The kinetic energy of photoelectrons remains constant as light amplitude increases
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Priyanshu kumar
see what ever be the intesity of incident light may be...but if the frequency of light doesn't exceed or overcome threshold frequency then no ejections of electrons is possible
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sir., but here it is written that frequency increases.
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the rate of electrons ejections which is proportional to measured electric current increses when frequency increases
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the kinetic energy of photoelectrons is proportional to light frequency
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thank you sir
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welcome and please accept the answer if it helps😊🙏
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Dinesh khalmaniya 1
Kinetic energy of photoelectrons increases with increase in the frequency of incident radiation. Reason The number of photoelectrons ejected increases with increase in intensity of incident radiation.
hope this will help you 🙏🙏🙏