NEET UG PHYSICS MCQ: MOTION IN PLANE

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Analyzing +4 | -1

Given that

\vec{C}=\vec{A}+\vec{B}

and

\vec{C}

makes an angle

\alpha

with

\vec{A}

and

\beta

with

\vec{B}

. Which of the following options is correct?

View answer and explanation

Correct option: C

\alpha < \beta

, if

A > B

Option C (

\alpha < \beta

, if

A > B

) is correct because the angle a vector makes with another vector is inversely proportional to its magnitude when they are added.

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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

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\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)