Question

The angle between $\overrightarrow{P}$ and $\overrightarrow{Q}$ is $\theta$ Then$|\hat{P}\times \hat{Q}|$ is

• A. $PQsin\theta$
• B. $sin\theta$
• C. $PQ$
• D. None of the above

Answer 1

Answer: (B)

$|\hat{P}\times \hat{Q}|=1\times 1\times sin\theta =sin\theta$ . Because $|\hat{P}|=|\hat{Q}|=1$