A)
B)
C)
D)
Correct Answer: D
Solution :
According to Einstein's photoelectric equation \[hv=h{{v}_{0}}+{{K}_{\max }}\Rightarrow {{K}_{\max }}=hv-h{{v}_{0}}\] \[K{{E}_{\max }}=hv-\phi \] ?(i) where \[\phi =\]work function of metal Comparing above Eq. (i) with equation of a straight line\[~y=mx+c\] we get \[m=h,\,c=-\phi \] Therefore, if we draw a graph between kinetic energy and frequency, then a straight line cutting the frequency axis at vq and giving an intercept of \[(-\phi )\] on the kinetic energy axis is obtained.You need to login to perform this action.
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