Explore popular questions from Vectors for JEE Advanced. This collection covers Vectors previous year JEE Advanced questions hand picked by experienced teachers.

## Chemistry

Vectors

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Q 1. {tex} A B C D {/tex} is a quadrilateral. Forces {tex} \overrightarrow { B A } , \overrightarrow { B C } , \overrightarrow { C D } {/tex} and {tex} \overrightarrow { D A } {/tex} act at the point. Their resultant is

A

{tex} 2 \overrightarrow { A B } {/tex}

B

{tex} 2 \overrightarrow { D A } {/tex}

C

{tex} 2\overrightarrow { B C } {/tex}

{tex} 2 \overrightarrow{ B A } {/tex}

##### Explanation

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Q 2. Following set of forces act on a body. In which case the resultant cannot be zero?

A

{tex} 10 \mathrm { N } , 10 \mathrm { N } , 20 \mathrm { N } {/tex}

B

{tex} 10 \mathrm { N } , 10 \mathrm { N } , 10 \mathrm { N } {/tex}

C

{tex} 10 \mathrm { N } , 20 \mathrm { N } , 20 \mathrm { N } {/tex}

{tex} 10 \mathrm { N } , 20 \mathrm { N } , 40 \mathrm { N } {/tex}

##### Explanation

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Q 3. If none of the vectors {tex} \vec { A } , \vec { B } {/tex} and {tex} \vec { C } {/tex} are zero and if {tex} \vec { A } \times \vec { B } = 0 {/tex} and {tex} \vec { B } \times \vec { C } = 0 , {/tex} the value of {tex} \vec { A } \times \vec { C } {/tex} is

A

unity

B

zero scalar

Zero vector

D

{tex} A C \cos \theta {/tex}