According to Einstein's photoelectric equation, the plot of the kinetic energy of the emitted photo electrons from a metal $$Vs$$ the frequency, of the incident radiation gives as straight the whose slope
depends both on the intensity of the radiation and the metal used
depends on the intensity of the radiation
depends on the nature of the metal used
is the same for the all metals and independent of the intensity of the radiation
From Equation $$K.E = hv - \phi $$
slope of graph of $$K.E$$ and $$v$$ is = $$h$$ (Plank's constant) which is same for all metals.
MCQ (Single Correct Answer)
The work function of a substance is $$4.0$$ $$eV.$$ The longest wavelength of light that can cause photo-electron emission from this substance is approximately.