Question

31. If the order of two vectors A and B is reversed, then in the cross product of two vectors,
the resultant vector
(1)changes only in direction
(2) changes in magnitude
(3) magnitude and direction
(4) does not change in both magnitude and directio
​

Answer 1

If the order of two vectors A and B is reversed, then  then in the cross product of two vectors, the resultant vector (1) changes only in direction.

• For a vector, the magnitude is the quantitative value that shows the distance travelled by the vector.
• A vector quantity requires a magnitude and direction.
• Suppose that the vectors A and B are moving as R=A×B.
• Reversing the two vectors will give R= B×A.
• The magnitude remains the same, only the direction is changed.
• Hence, the correct option is (1) and all other options are not correct.

#SPJ2

Answer 2

Explanation:

Changes only in direction