CBSE 2024 · Region 4 · Set 1 · Q11 · 1 mark
If $\displaystyle \overrightarrow{\mathrm{a}}$ and $\displaystyle \overrightarrow{\mathrm{b}}$ are two vectors such that $\displaystyle |\overrightarrow{\mathrm{a}}|=1,|\overrightarrow{\mathrm{~b}}|=2$ and $\displaystyle \overrightarrow{\mathrm{a}} \cdot \overrightarrow{\mathrm{b}}=\sqrt{3}$, then the angle between $\displaystyle 2 \vec{\mathrm{a}}$ and $\displaystyle -\vec{\mathrm{b}}$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \frac{5 \pi}{6}$
Vector AlgebraProduct of Two VectorsApplymcqeasy
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CBSE Class 12 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.