MCQ
A vector $\vec{a}$ is turned without a change in its length through a small angle $d \theta$. The value of $|\Delta \vec{a}|$ and $\Delta a$ are respectively
  • A
    $0, \operatorname{ad\theta }$
  • $\operatorname{ad} \theta, 0$
  • C
    0,0
  • D
    None of these

Answer

Correct option: B.
$\operatorname{ad} \theta, 0$

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