Physics - Modern Physics Question with Solution | TestHub

A small metal plate of area $2{\mathrm{cm}}^2$ is placed at a distance of 2 m from a monochromatic light source of $\lambda =1000\text{A˚}$ and power rating of 100 W and light energy conversion efficiency of 10%, emitting light uniformly in all directions. Light falls normally on the plate (work function, $\varphi =10\mathrm{eV}$). Assuming one out of $10^6$ photons is able to eject a photoelectron, identify correct statements