The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as:

The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as: a. 0.5 b. 1.5 c. 3.5 d. 10 
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The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as: a. 0.5 b. 1.5 c. 3.5 d. 10 

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