Electrostatics Question 183

Question: A force F acts between sodium and chlorine ions of salt (sodium chloride) when put 1cm apart in air. The permittivity of air and dielectric constant of water are ε0 and K respectively. When a piece of salt is put in water electrical force acting between sodium and chlorine ions 1cm apart is [MP PET 1995]

Options:

A) FK

B) FKε0) FKε0

D) Fε0K

Show Answer

Answer:

Correct Answer: A

Solution:

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 =FK



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