An electric dipole is placed along the x - axis at the origin O . A point P

Question

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

\frac{π}{3}

with the x-axis. If the electric field at P makes an angle θ with the x-axis, the value of

θ

would be

Answer: Option B
:
B

θ = \frac{π}{3} + α

where

t a n α = \frac{1}{2} t a n \frac{π}{3}

\Rightarrow α = t a n^{- 1} \sqrt{\frac{3}{2}}

So,

θ = \frac{π}{3} + t a n^{- 1} \sqrt{\frac{3}{2}}

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