If a is a nonzero vector of magnitude ' a ' and a nonzero scalar,… - Vidyadip

MCQ

If $\vec{a}$ is a nonzero vector of magnitude ' $a$ ' and $\lambda$ a nonzero scalar, then $\lambda \vec{a}$ is unit vector if :

A
$\lambda=1$
B
$\lambda=-1$
C
$a=|\lambda|$
✓
$a=\frac{1}{|\lambda|}$

✓

Answer

Correct option: D.

$a=\frac{1}{|\lambda|}$

(D) $a=\frac{1}{|\lambda|}$

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