

MCQOPTIONS
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1. |
For Pair Production phenomenon to occur the photon must have energy, greater than or equal to ______________ |
A. | 0.51 MeV |
B. | 1.02 MeV |
C. | 0.32 MeV |
D. | 0.85 MeV |
Answer» C. 0.32 MeV | |