A)
B)
C)
D)
Correct Answer: D
Solution :
According to photoelectric equation \[{{E}_{k}}=hv-h{{v}_{0}}\] ... (i) If the energy of photon \[(hv)\] is less than the work function \[(h{{v}_{0}})\] of metallic surface, then electrons will never be ejected from surface regardless of intensity of incident light. Also, from Eq. (i), when \[v={{v}_{0}},\,{{E}_{k}}=0\] \[\therefore \] Graph represents variation of \[{{E}_{k}}\] with v.
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