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An electric dipole of dipole moment 4 ...

An electric dipole of dipole moment ` 4 xx 10^(-5) C - m`, kept in a uniform electric field of `10^(-3)NC^(-1)` ,experiences a torque of `2 xx 10^(-8)` Nm. The angle which the dipole which the dipole makes with the electric field is :

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

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