An electric dipole is placed along the X-axis at the origin O. A point P is at a distance of 20cm from this origin such that OP makes an angle π3 with the X-axis. If electric field at P makes an angle θ with X-axis, the value of θ is
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a
π3
b
π3+tan−132
c
3π2
d
tan−132
answer is B.
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Detailed Solution
tanα=tanθ2 =tan6002 =32 ⇒α=tan-132 The angle made by electric field with X axis is θ+α=π3+tan-132
An electric dipole is placed along the X-axis at the origin O. A point P is at a distance of 20cm from this origin such that OP makes an angle π3 with the X-axis. If electric field at P makes an angle θ with X-axis, the value of θ is