Nuclear Engineering Question:

Unit of radioactivity is

A. barn
B. Fermi
C. Angstrom
D. Curie

Option D

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The half life period of a radioactive element depends upon the A. temperature B. pressure C. amount of element present D. none of these	One 'amu' is equivalent to A. 9.31 Mev B. 931 eV C. 931 MeV D. 931 J