1.

The density of neutrons is of the order  [NCERT 1980]

A.                 \[{{10}^{3}}kg/cc\]         
B.                 \[{{10}^{6}}kg/cc\]
C.                 \[{{10}^{9}}kg/cc\]         
D.                 \[{{10}^{11}}kg/cc\]
Answer» E.


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