Physics, 30.12.2019 23:31 lil3114

When exposed to a radioactive source which emits 1.2-mev gamma-rays, a particular material is found to have a half-value thickness x of 10 cm how thick would a shield made of this material need to be in order to block 75% of the radiation? a. 5 cm b. 20 cm c. 15 cm d. 25 cm e. 10 cm

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When exposed to a radioactive source which emits 1.2-mev gamma-rays, a particular material is found...