Electrostatics Question 183
Question: 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 [MP PET 1995]
Options:
A)
B)
D)
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