A VECTOR IS NOT CHANGED IF- (a)it is rotated through an arbitrary angle (b)it is multiplied by an arbitrary scalar (c)it is cross multiplied by a unit vector (d) it is slid parallel to itself CAN I GET THE ANSWER FROM THE ABOVE OPTIONS AND THE EXPLANATION ALSO.
Answers
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72
A vector is changed whenever the direction or the magnitude of the drawn line is altered to any extent.
Hence, a vector definitely changes if it is rotated through an arbitrary angle or cross multiplied by a unit vector, as the direction of the vectors changes in both cases.
Likewise, the vector changes due to the multiplication by an arbitrary scalar, due to the change of its magnitude.
However, the vector remains unchanged only if it is slid parallel to itself, as no change occurs in its direction or magnitude in this case.
Hence, a vector definitely changes if it is rotated through an arbitrary angle or cross multiplied by a unit vector, as the direction of the vectors changes in both cases.
Likewise, the vector changes due to the multiplication by an arbitrary scalar, due to the change of its magnitude.
However, the vector remains unchanged only if it is slid parallel to itself, as no change occurs in its direction or magnitude in this case.
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36
Answer:
A vector is not changed if it is slid parallel to itself
Explanation:
because a vector remains same if it is displaced without changing its magnitude and direction.
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