16.When a number k (where k is a negative constant) ismultiplied with

1.	16.When a number k (where k is a negative constant) ismultiplied with vector A, then(1) the magnitude of vector will be k times ofinitial value and direction remains the same.2) the magnitude of vector will be k times of initialvalue and the direction would be opposite.(3) the magnitude of vector will be (1/k) times ofinitial value and direction remains the same.(4) the magnitude of vector will be (1/k) times ofinitial value and the direction would beopposite.
Answer» OPTION 2 is correct.. let the vector be i .. ans k be a negetive number = -2 now when k is multiplied.. with ithe vectors become = -2i = 2(-i)....so, direction of vector changes from i to -i...and magnitude changes k times..

16.When a number k (where k is a negative constant) ismultiplied with vector A, then(1) the magnitude of vector will be k times ofinitial value and direction remains the same.2) the magnitude of vector will be k times of initialvalue and the direction would be opposite.(3) the magnitude of vector will be (1/k) times ofinitial value and direction remains the same.(4) the magnitude of vector will be (1/k) times ofinitial value and the direction would beopposite.

Answer»

OPTION 2 is correct..

let the vector be i .. ans k be a negetive number = -2

now when k is multiplied.. with ithe vectors become = -2i = 2(-i)....so, direction of vector changes from i to -i...and magnitude changes k times..

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