According to Einstein's photoelectric equation, the plot of the maximum kinetic energy of the emitted photoelectrons from a metal versus frequency of the incident radiation gives a straight line whose slope

Options

A. is the same for all metals and independent of the intensity of the radiation
B. depends both on the intensity of the radiation and the metal used
C. depends on the intensity of the radiation
D. depends on the nature of the metal used

Answer

A

Explanation

The graph of K.E. against frequency is a straight line. The slope of the graph is 'h' i.e. the Planck's constant. As it is a universal constant, it does not depend upon the intensity of radiation and has the same value for all metals.