Two fixed charges A and B of 5 μC each are separated by a distance of 6 m. C is the mid-point of the line joining A and B. A charge 'Q' of -5μC is shot perpendicular to the line joining A and B through C with a kinetic energy of 0.06J. The charge 'Q' comes to rest at a point D. The distance CD is:-
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Question

Two fixed charges A and B of 5 μC each are separated by a distance of 6 m. C is the mid-point of the line joining A and B. A charge 'Q' of -5μC is shot perpendicular to the line joining A and B through C with a kinetic energy of 0.06J. The charge 'Q' comes to rest at a point D. The distance CD is:-

Options

G1 Physics · Accepted Answer

Step 1: Identify the relevant electrostatic principle—Coulomb's law, superposition, Gauss's law, potential-energy conservation or conductor boundary conditions. Step 2: Write the corresponding equation using the quantities in the question and simplify the geometry. Step 3: Substitute the given values and compare with the alternatives. Final: D: 4 m.