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Q. According to Einstein’s photoelectric equation to the graph between kinetic energy of photoelectrons ejected and the frequency of incident radiation is

KCETKCET 2021Dual Nature of Radiation and Matter

Solution:

$ K _{\max }= h v-\phi_{o} $
$ y = m x - C$
Graph is a straight line with slope ' $h$ '
Till $v=v_{ o }$, no photoelectric emission occurs