Assertion: If $|\vec{A}+\vec{B}|=| \vec{A}-\vec{B} \mid$, then the angle between $\vec{A}$ and $\vec{B}$ is $90^{\circ}$. Reason: $\vec{A}+\vec{B}=\vec{B}+\vec{A}$

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

If Assertion is true but Reason is false

If both Assertion and Reason are false

JEE PHYSICS MCQ: MOTION IN PLANE

1 Easy

1 of 1

Analyzing +4 | -1

Assertion: If

|\vec{A}+\vec{B}|=| \vec{A}-\vec{B} \mid

, then the angle between

\vec{A}

and

\vec{B}

90^{\circ}

.
Reason:

\vec{A}+\vec{B}=\vec{B}+\vec{A}

View answer and explanation

Correct option: B

If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion

Option B is correct because both the assertion and reason are true, but the reason doesn't explain the assertion about the angle between the vectors.

Practice All Chapter MCQs →

\mathrm{\vec P} = \mathrm{\vec A} + \mathrm{\vec B}\,\,\mathrm{and}\,P = A + B.

\mathrm{\vec A}\,and\,\mathrm{\vec B}

0^{\circ}

90^{\circ}

\mathrm{If}\,(\mathbf{a}+3 \mathbf{b}) \cdot(7 \mathbf{a}-5 \mathbf{b})=0

(\mathbf{a}-4 \mathbf{b}) \cdot(7 \mathbf{a}-2 \mathbf{b})=0

\mathbf{a}

\mathbf{b}

\theta

\left(90^{\circ}-\theta\right)

39.2 \mathrm{~ms}^{-1}

50 \mathrm{~m}

{g}=9.8 \mathrm{~ms}^{-2}