Two points charges `q_1 and q_2` are placed at a distance of 50 m from each each other in air, and interact with a certain force. The same charges are now put in oil whose relative permittivity is 5. If the interacting force between them is still the same, their separation now isA. `16.6m`B. `22.3m`C. `28.4m`D. `25.0m`

Two points charges `q_1 and q_2` are placed at a distance of 50 m from

1.	Two points charges `q_1 and q_2` are placed at a distance of 50 m from each each other in air, and interact with a certain force. The same charges are now put in oil whose relative permittivity is 5. If the interacting force between them is still the same, their separation now isA. `16.6m`B. `22.3m`C. `28.4m`D. `25.0m`
Answer» Correct Answer - B `1/(4piepsilon_0).(q_1q_2)/r_1^2=1/(4piepsilon_0k).(q_1q_2)/r_2^2)` `:. r_2=r_1/sqrtk=50/sqrt5` `=22.36m`

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