Light of frequency $
u = 2
u_0$ ejects photoelectrons from a metal w…

Question

Light of frequency $
u = 2
u_0$ ejects photoelectrons from a metal with threshold frequency $
u_0$. The maximum KE of the photoelectrons is

Accepted Answer

C. $h
u_0$

$KE_{max} = h
u - h
u_0 = h(2
u_0) - h
u_0 = h
u_0$.

Answer

$2h
u_0$

Answer

$3h
u_0$

Answer

$h
u_0 / 2$

Light of frequency $\nu = 2\nu_0$ ejects photoelectrons from a metal with threshold frequency $\nu_0$. The maximum KE of the photoelectrons is