If the magnitude of \overrightarrow{a} \times \overrightarrow{b} equals to \overrightarrow{a} \cdot \overrightarrow{b}, then which one of the following is correct?

Correct Answer is : The angle between →a and →b is 45∘

\overrightarrow{a}=\overrightarrow{b}

The angle between \overrightarrow{a} and \overrightarrow{b} is 45^{\circ}

\overrightarrow{a} is parallel to \overrightarrow{b}

\overrightarrow{a} is perpendicular to \overrightarrow{b}

UPSC NDA I 2013 Mathematics Paper

Question : 82 of 120

Marks: +1, -0

If the magnitude of

→

equals to

→

⋅

→

, then which one of the following is correct?

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