The work function of a certain metal is 2.3 eV. If light of wave number `2 xx 10^(6)m^(-1)` falls on it, the kinetic energies of fastest and slowest ejected electron will be respectively.
A
2. 48 eV , 0.18 eV
B
0.18 eV , zero
C
2.30 eV , 0.18 eV
D
0.18 eV , 0.18 eV
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The correct Answer is:
B
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