A force 
acts between sodium and chlorine ions of salt (sodium chloride) when put 
apart in air. The permittivity of air and dielectric constant of water are 
and 
respectively. When a piece of salt is put in water electrical force acting between sodium and chlorine ions 
apart is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
When put 1 cm apart in air, the force between Na and Cl ions = F. When put in water, the force between Na and Cl ions 
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