A set of vectors taken in a given order gives a closed polygon. Then the resultant of these vectors is a

scalar quantity

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pseudo vector

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unit vector

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null vector

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Solution

The correct option is D null vector

If $n$ vectors are represented by adjacent sides of a $n$ sided polygon taken in same order in both direction and magnitude ,then the resultant is a null vector.
$- - \to A B + - - \to B C + - - \to C D + - - \to D E + - - \to E F + - - \to F A = 0$
Resultant of these vectores is a null vector

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