question_answer2) According to Einstein's photoelectric equation, the plot of the kinetic energy of the emitted photoelectrons from a metal\[Vs\]the frequency, of the incident radiation gives a straight line whose slope
A)
depends on the nature of the metal used
doneclear
B)
depends on the intensity of the radiation
doneclear
C)
depends both on the intensity of the radiation and the metal used
doneclear
D)
is the same for all metals and independent of the intensity of the radiation
question_answer3) The work function of a substance is\[4.0\text{ }eV\]. The longest wavelength of light that can cause photoelectron emission from this substance is approximately