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Two identical charges `+Q` are kept fixed some distance apart.A small particles `P` with charge `q` is placed midway between them . If `P` is given a small displacement `Delta` ,it will undergo simple harmonic motion if (i) `q` is positive and `Delta` is along the line joining the charges (ii) `q` is positive and `Delta` is perpendicular to the line joining the charges (iii) `q` is negative and `Delta` is perpendicular to the line joining the charges (iv) `q` is positive and `Delta` is along the line joining the chargesA. `q` is positive and `Delta` is along the line joining the charges.B. `q` is negative and `Delta` is perpendicular to the line joining the charges.C. `q` is negative and `Delta` is perpendicular to the line joining the charges.D. `q` is positive and `Delta` is along the line joining the charges. |
Answer» Correct Answer - B::C |
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