1.

Dielectric constant of pure water is 81. Its permittivity will be         [CPMT 1984]  

A.          \[7.12\times {{10}^{-10}}\,MKS\] units        
B.          \[8.86\times {{10}^{-12}}MKS\] units  
C.          \[1.02\times {{10}^{13}}\ MKS\] units 
D.          Cannot be calculated
Answer» B.          \[8.86\times {{10}^{-12}}MKS\] units  


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