27 июн. 2018 г. · E=hc/(lambda). Lambda is the wavelength of incident wave. This lambda is the threshold wavelength. For higher threshold energy threshold ...

17 сент. 2018 г. · Use the formula W(work function) = HC/∆ Now work function=2.8 eV ... threshold wavelength for potassium if its work function is 2 eV?

1 февр. 2018 г. · The threshold wavelength is that wavelength at which a photon striking the electron will impart to it just the work function and nothing more.

28 мая 2019 г. · E=hc/(lambda). Lambda is the wavelength of incident wave. This lambda is the threshold wavelength. For higher threshold energy threshold ...

21 июл. 2018 г. · KE= hc/lambda- W KE=0, so, hc/lambda= W Call lambda “L”, then L=hc/W=6.62E-34(3E8)/2(1,6E-19) L=6.21E-7m or 621 nm.

3 дек. 2015 г. · The equation for work function is W = hf so this is rearranged to · f = W/h where h is planck's constant. · Therefore if we know the work fucntion ...

22 июл. 2017 г. · The threshold wavelength is that wavelength at which a photon striking the electron will impart to it just the work function and nothing more.

6 авг. 2017 г. · So the answer is yes; multiply the threshold frequency by plancks constant and thats the energy of a photon equal to the work function.

24 июл. 2018 г. · The threshold wavelength is that wavelength at which a photon striking the electron will impart to it just the work function and nothing more.

Use the formula W(work function) = HC/∆ Now work function ... work function is 2.8 eV? ... threshold wavelength for potassium if its work function is 2 eV?