A)
B)
C)
D)
Correct Answer: D
Solution :
Key Idea: Compare the Einstein's photo-electric equation with the equation of straight line. Einstein's photoelectric equation is 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 \[{{v}_{0}}\]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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