MCQ
Given below are two statement: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.

Assertion $A:$ If an electric dipole of dipole moment $30 \times 10^{-5}\,Cm$ is enclosed by a closed surface, the net flux coming out of the surface will be zero.

Reason $R$ : Electric dipole consists of two equal and opposite charges.

In the light of above, statements, choose the correct answer from the options given below:

  • Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
  • B
    $A$ is true but $R$ is false
  • C
    Both $A$ and $R$ true but $R$ is NOT the correct explanation of $A$
  • D
    $A$ is false but $R$ is true

Answer

Correct option: A.
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
a
$\overrightarrow{ P }=30 \times 10^{-5}\,Cm$

Using Gauss law

$\phi=\frac{Q_{\text {in }}}{\varepsilon_0} \text { and } Q_{\text {in }}=0$

$\Rightarrow \phi=0$

Statement $1$ and Statement $2$ are correct.

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