1.

Two dielectric dipoles, A, B with respective dipole moments \({d_A} = - 4qa\;\hat i{\rm{\;and\;}}{d_B} = - 2qa\;\hat i\) are placed on the X-axis with a separation R, as shown in the figureThe distance from A at which both of them produce the same potential is

A. \(\frac{{\sqrt 2 R}}{{\sqrt 2 + 1}}\)
B. \(\frac{{\sqrt 2 R}}{{\sqrt 2 - 1}}\)
C. \(\frac{R}{{\sqrt 2 + 1}}\)
D. \(\frac{R}{{\sqrt 2 - 1}}\)
Answer» C. \(\frac{R}{{\sqrt 2 + 1}}\)


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