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Physics-Vectors

NEET Physics Vectors MCQ Question

Type: MCQ-numerical-Hard-Class 11

A vector A\mathbf{A} is multiplied by a scalar k=−2k = -2. Which of the following statements about the resultant vector B\mathbf{B} is correct?

A

Vector B\mathbf{B} has the same magnitude as A\mathbf{A} but opposite direction.

B

Vector B\mathbf{B} has double the magnitude of A\mathbf{A} and the same direction.

C

Vector B\mathbf{B} has double the magnitude of A\mathbf{A} and opposite direction.

D

Vector B\mathbf{B} has the same magnitude as A\mathbf{A} and the same direction.

Correct Answer

Option C

Detailed Explanation

Multiplying a vector by a negative scalar results in a vector with the same magnitude multiplied by the absolute value of the scalar and in the opposite direction.

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