1.

Unit of radioactivity is Rutherford. Its value is  [MP PMT 1994]

A.            \[3.7\times {{10}^{10}}\]disi tegrations/sec
B.            \[3.7\times {{10}^{6}}\]disintegrations/sec
C.            \[1.0\times {{10}^{10}}\] disintegrations/sec
D.            \[1.0\times {{10}^{6}}\] disintegrations/sec
Answer» E.


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