Two vectors $\vec{A}$ and $\vec{B}$ have magnitudes A and B respectively. If the magnitude of their cross product is $\frac{AB}{\sqrt{2}}$, which of the following could be the angle between $\vec{A}$ and $\vec{B}$?

If $\overrightarrow F = 2\widehat i - 3\widehat j\,\,N$ and $\overrightarrow r = 3\widehat i + 2\widehat j\,\,m$ then torque $\overrightarrow au$ is

If $\overrightarrow F = 2\widehat i - 3\widehat j\,\,N$ and $\overrightarrow r = 3\widehat i + 2\widehat j\,\,m$ then torque $\overrightarrow au$ is

If $\overrightarrow F = 2\widehat i - 3\widehat j\,\,N$ and $\overrightarrow r = 3\widehat i + 2\widehat j\,\,m$ then torque $\overrightarrow au$ is

A particle is acted upon by two forces $\vec{F_1} = 2\hat{i} + 3\hat{j} - \hat{k}$ N and $\vec{F_2} = 3\hat{i} - \hat{j} + 2\hat{k}$ N. The torque produced by these forces about the origin, if their lines of action intersect at $\vec{r} = \hat{i} - 2\hat{j} + \hat{k}$ m is:

If $\overrightarrow F = 2\widehat i - 3\widehat j\,\,N$ and $\overrightarrow r = 3\widehat i + 2\widehat j\,\,m$ then torque $\overrightarrow au$ is