Related Questions

    2.

    A unit vector perpendicular to both i^βˆ’2j^+3k^\hat{i} - 2\hat{j} + 3\hat{k} and 2i^+j^βˆ’k^2\hat{i} + \hat{j} - \hat{k} is:

    A

    βˆ’i^+7j^+5k^53\frac{-\hat{i} + 7\hat{j} + 5\hat{k}}{5\sqrt{3}}

    B

    2i^βˆ’j^+3k^14\frac{2\hat{i} - \hat{j} + 3\hat{k}}{\sqrt{14}}

    C

    i^βˆ’2j^βˆ’k^6\frac{\hat{i} - 2\hat{j} - \hat{k}}{\sqrt{6}}

    D

    i^+j^+k^3\frac{\hat{i} + \hat{j} + \hat{k}}{\sqrt{3}}

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    10.

    A→\overrightarrow A is a vector with magnitude A, then the unit vector A^\widehat A in the direction of A→\overrightarrow A is

    A

    AA→A\overrightarrow A

    B

    A→ . Aβ†’\overrightarrow A \,.\,\overrightarrow A

    C

    A→ imes Aβ†’\overrightarrow A \, imes \,\overrightarrow A

    D

    A→A\frac{{\overrightarrow A }}{A}

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