

MCQOPTIONS
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1. |
A ‘γ’ – ray photon produces an electron-positron pair each having KE of 0.01 MeV. The energy of ‘γ’ – ray photon is |
A. | 1.02 MeV |
B. | 1.04 MeV |
C. | 1.03 MeV |
D. | 2.08 MeV |
Answer» B. 1.04 MeV | |