The force acting between sodium and chloride ion kept at 1 cm apart in air is 'F'. If sodium and chloride ion are kept at 1 cm in water of dielectric constant 'K' then force acting between them will be :
(a) F/K
(b) FK/ε₀
(c) F/Kε₀
(d) Fε₀/K
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... ions of salt (sodium chloride) when put 1 cm apart in air. the permittivity of air and dielectric ... salt is put in water electrical force acting between Sodium and chlorine ions 1 cm ...
so the answer is a)f/k
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