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Mathematics in Physics

JEE Main level, numerical answer, medium

29 of 121

Question 29 of 121

If $\vec{P}\times \vec{Q}=\vec{Q}\times \vec{P}$ , the angle between $\vec{P}$ and $\vec{Q}$ is $\theta \left(0^{\circ}\lt \theta \lt 360^{\circ}\right)$ . The value of $\theta$ will be ___ $^{\circ}$ .

Show answer and solution

Answer: 180

-PQ\sin \theta

=PQ\sin \theta

\Rightarrow \theta =180^{\circ}

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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More Physics practice

JEE Main Physics practice question on Mathematics in Physics (Addition and Subtraction of Vectors), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

If P⃗×Q⃗=Q⃗×P⃗\vec{P}\times \vec{Q}=\vec{Q}\times \vec{P}P×Q​=Q​×P, the angle between P⃗\vec{P}P and Q⃗\vec{Q}Q​ is θ(0∘<θ<360∘)\theta \left(0^{\circ}\lt \theta \lt 360^{\circ}\right)θ(0∘<θ<360∘). The value of θ\thetaθ will be ___∘^{\circ}∘.

JEE Main question paper PDF

More Physics practice

If $\vec{P}\times \vec{Q}=\vec{Q}\times \vec{P}$ , the angle between $\vec{P}$ and $\vec{Q}$ is $\theta \left(0^{\circ}\lt \theta \lt 360^{\circ}\right)$ . The value of $\theta$ will be ___ $^{\circ}$ .