CBSE 2023 · Region 3 · Set 1 · Q11 · 1 mark

$\displaystyle \overrightarrow{\mathrm{a}}$ and $\displaystyle \overrightarrow{\mathrm{b}}$ are two non-zero vectors such that the projection of $\displaystyle \overrightarrow{\mathrm{a}}$ on $\displaystyle \overrightarrow{\mathrm{b}}$ is $\displaystyle 0$ . The angle between $\displaystyle \overrightarrow{\mathrm{a}}$ and $\displaystyle \overrightarrow{\mathrm{b}}$ is :

CBSE Class 12 Mathematics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.