According to Einstein’s photoelectric equation, the plot of the kinetic energy

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

  1. depends both on the intensity of the radiation and the metal used
  2. depends on the nature of the metal used
  3. depends on the intensity of the radiation
  4. is the same for all metals and independent of the intensity of the radiation

Answer

According to the Einstein’s Photoelectric equation

KEmax = hc - φ

Kinetic energy and f (frequency) are variables. The slope of the line is plank’s constant (h).

Compare it with the equation, y = mx + c

Thus, the slope is same for all metals and independent of the intensity of radiation.

The correct option is D.