If the required exposure time for a 50 Curie Ir-192 source is 4 minute – McqOptions

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1.	If the required exposure time for a 50 Curie Ir-192 source is 4 minutes, what exposure time would be required at 25 Curie source:
A.	4 minutes
B.	8 minutes
C.	2 minutes
D.	16 minutes
Answer» C. 2 minutes

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