MCQ
$\hat{\mathrm{i}}-2 \hat{\mathrm{j}}+\hat{\mathrm{k}}$ पर सदिश $2 \hat{\mathrm{i}}-\hat{\mathrm{j}}+\hat{\mathrm{k}}$ का प्रक्षेप है :
  • A
    $\frac{4}{\sqrt{6}}$
  • $\frac{5}{\sqrt{6}}$
  • C
    $\frac{4}{\sqrt{3}}$
  • D
    $\frac{7}{\sqrt{6}}$

Answer

Correct option: B.
$\frac{5}{\sqrt{6}}$
(B)

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