Light rays of wavelength `6000A^(@)` and of photon intensity `39.6Wm^-2` is incident on a metal surface. If only one percent of photons incident on the surface of electrons emitted per second unit area from the surface will be [Planck constant =`6.64xx10^(-34) J-S`,Velocity of light =`3xx10^(8) ms^(-1)`]

Options

A. `12 xx 10^(18)`
B. `10 xx 10^(18)`
C. `12 xx 10^(17)`
D. `12 xx 10^(15)`

Answer

3

Explanation

`p = ((n)/(t))((hc)/(lambda))`