Maximum kinetic energy of the photoelectrons is independent of the intensity of incident radiation .
Give reason.

Explanation

By Einstein.s photoelectric equation
`eV_1=hv_1-hv_0" "....(i)`
and
`eV_2=(hv_1)/2-hv_0`
`2eV_1=hv_1-2hv_0" "...(ii)`
Solving (i) and (ii) we have
`e(V_1-2V_2)=hv_0`
`v_0=(e(V_1-2V_2))/h`
the frequency is doubled , maximum kinetic energy will not doubled.
`K_(max)=hv-hv_0`
`K_("new")=2hv-hv_0=hv+K_(max)`