A beam of light of wavelength 400nm and power 1.55 mW is directed at the cathode of a photoelectric cell. If only 10% of the incident photons effectively produce photoelectrons, then find current due to these electrons. (given `hc=1240 eV-nm, e=1.6xx10^(-19)C`)

1.5 mW of 400 nm light is directed at a photoelectric cell. If 0.1% of the incident photons produce photoelectrons, find the current in the cell.

1.5 mW of 400 nm light is directed at a photoelectric cell. If 0.1% of the incident photons produce photoelectrons, find the current in the cell.

1.5 mW of 400 nm light is directed at a photoelectric cell. If 0.1% of the incident photons produce photoelectrons, find the current in the cell.

A 100 W point source emits monochromatic light of wavelength 6000 A Q. 1.5 mW of 4000A light is directed at a photoelectric cell If 0.10 per cent of the incident photons produce photoelectrons, find current is the cell. [Given h=6.6xx10^(-34)Js , c=3xx10^(8)ms^(-1) and e=1.6xx10^(-19)C ]

10^-3 W of 5000A light is directed on a photoelectric cell. If the current in the cell is 0.16muA , the percentage of incident photons which produce photoelectrons, is

10^-3 W of 5000A light is directed on a photoelectric cell. If the current in the cell is 0.16muA , the percentage of incident photons which produce photoelectrons, is

10^-3 W of 5000A light is directed on a photoelectric cell. If the current in the cell is 0.16muA , the percentage of incident photons which produce photoelectrons, is

10^(-3) W of 5000 Å light is directed on a photoelectric cell. If the current in the cell is 0.16 mA, the percentage of incident photons which produce photoelectrons, is