NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Easy

1 of 1

Application +4 | -1

If two vectors

\overline A = 2\overrightarrow i - 2\overrightarrow j + \overrightarrow k

, and

\overline B = 2\overrightarrow i + 6\overrightarrow j - m\overrightarrow k

are perpendicular to each other than the value of

m

View answer and explanation

Correct option: C

-8

If two vectors

\overline A = 2\overrightarrow i - 2\overrightarrow j + \overrightarrow k

and

\overline B = 2\overrightarrow i + 6\overrightarrow j - m\overrightarrow k

are perpendicular to each other, then the value of

m

is -8 because their dot product must be zero.

More Questions from MOTION IN PLANE

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\mathrm{\vec a}\,and\,\mathrm{\vec b}

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\overrightarrow P \,\,.\,\,\overrightarrow Q = 0\,and\,\overrightarrow P \,\, \times \,\,\overrightarrow Q = 0

\overrightarrow Q \,and\,\overrightarrow R

\vec{A}=3 \hat{i}+4 \hat{j}

\vec{B}=6 \hat{i}+8 \hat{j}

A

B

\overrightarrow{\mathrm{A}}

\overrightarrow{\mathrm{B}}

{\cot ^{ - 1}}\left( 2 \right)