Question

A vector Ā has magnitude of 3 units and points towards
east while another vector B has magnitude of 4 units
and points towards north. The ratio between A.B and
AxB is.
1) 1:1
2) 1:0
3) 0:12
4) 12:0​

Answer 1

Answer:

3) 0:12 is the answer

Explanation:

A and B are perpendicular to each other. Hence A.B is zero and

| A × B | =12.

Hence answer will be 0:12

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