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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The collecter of the photocell (in photoelectric experiment ) is made of tugsten while the emitter is Platinum having work function of 10eV .Monochromotic radiation of wavelength 124Å & power 100 watt is incident on emitter which emits photo electrons with a quantum efficiency of 1% .The accelerating voltage acros the photocell is of 10,000 volts (Use: hc=12400eVÅ ) The minimum wavelength of radiation coming from the tungsten target (collector) is

The collecter of the photocell (in photoelectric experiment ) is made of tugsten while the emitter is Platinum having work function of 10eV .Monochromotic radiation of wavelength 124Å & power 100 watt is incident on emitter which emits photo electrons with a quantum efficiency of 1% .The accelerating voltage acros the photocell is of 10,000 volts (Use: hc=12400eVÅ ) The minimum wavelength of radiation coming from the tungsten target (collector) is

2f is greater than threshold frequency of B ) the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2f are incident on the surfaces of A and B respectively