The magnitudes of the two vectors ${\rm{\vec a}}\,and\,{\rm{\vec b}}$ are a and b respectively. The vector product of ${\rm{\vec a}}\,and\,{\rm{\vec b}}$ cannot be

NEET UG PHYSICS MCQ: MOTION IN PLANE

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Understanding +4 | -1

The magnitudes of the two vectors

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

are a and b respectively. The vector product of

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

cannot be

View answer and explanation

Correct option: D

greater than ab

The vector product of

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

cannot be greater than ab because the magnitude of the cross product is

ab \sin \theta

, and the maximum value of

\sin \theta

is 1.

Practice All Chapter MCQs →

\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)

\theta