A dipole consists of two particles one with charge +1μC and mass 1kg and the other with charge −1μC and mass 2kg separated by a distance of 3m. For small oscillations about its equilibrium position, the angular frequency, when placed in a uniform electric field of 20kV/m is _____10−1rad/s
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Detailed Solution
x=2×0+1×31+2=1cmMoment of inertial of the system about axis of rotation I=2×12+1×22=6×10-4kg−m2(p→)=3×10−6CE=20×103v/mω=IPE=6×10-43×10−6×20×10+3=1×10-1rad/s