A Positron (Or Antielectron)is Made to Stop in a Sample

question 32

Multiple Choice

A positron (or antielectron) is made to stop in a sample of matter.Soon after,how many gamma rays are observed with what energy each?

• A)two,0.511 MeV each
• B)one,0.511 MeV
• C)none
• D)two,13.6 eV each
• E)one,13.6 eV

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Definitions:

Authority

The power or right to give orders, make decisions, and enforce obedience, often within a specific context like governmental or organizational roles.

EFT Program

Electronic Funds Transfer Program; a system that allows the electronic movement of money from one bank account to another.

Federal Income Taxes

Taxes levied by the U.S. federal government on individual and corporate income.

FICA Taxes

Federal taxes in the United States collected to fund Social Security and Medicare, required deductions from employees’ paychecks.