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An Electron (M=9

Question 29

Multiple Choice

An electron (m=9.11 * 10-31 kg) interacts with a positron and a single photon is emitted.Find the smallest possible frequency for this photon.


A) 8.2 * 1011 Hz
B) 6.8 * 1018 Hz
C) 1.3 * 1020 Hz
D) 2.5 * 1020 Hz
E) This reaction cannot occur because of conservation laws.

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