Q. 114.2( 26 Votes )

# Let the vectors be such that then is a unit vector, if the angle between is

A. π/6

B. π/4

C. π/3

D. π/2

Answer :

Given that:

(Magnitude of unit vector is 1)

Putting the values in the equation (1), we get

(where θ is the angle between the vectors)

Therefore, The correct option is (B).

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