A light source of power 16 watt emits light of wavelength 310nm. find the magnitude of photocurrent in ampere
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use E = nhv
and power is E/t.
u will get as P = ( n.h.v)/t.
get n/t .
later by multiplying it by electrons. this will become this much electron gives current.(only photo electron)
here I used n for photon as well as photo electrons because x no of photons will eject same no photoelectrons provided energy of photon is greater than workfunction of surface.
and power is E/t.
u will get as P = ( n.h.v)/t.
get n/t .
later by multiplying it by electrons. this will become this much electron gives current.(only photo electron)
here I used n for photon as well as photo electrons because x no of photons will eject same no photoelectrons provided energy of photon is greater than workfunction of surface.
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