दो समान आवेशित कण जिनमें से प्रत्येक का द्रव्यमान \(10\,g\) तथा आवेश \(2.0 \times 10^{-7}\,C\) कूलाम है, एक क्षैतिज मेज पर \(L\) दूरी पर सीमित संतुलन की स्तिथि में स्थित है। यदि प्रत्येक कण और मेज के मध्य घर्षण गुणांक \(0.25\) है तो \(L\) का मान \(........\) \(\left[ g =10\,ms ^{-2}\right]\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.