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Vector Algebra question

2007 · Shift 0 · Q54

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PYQ Library
JEE Main
Mathematics
Vector Algebra
2007 · Shift 0 · Q54

Vector Algebra question

2007 · Shift 0 · Q54

JEE MainMathematicsVector AlgebraMCQ+4 / −1

If

\widehat u

and

\widehat v

are unit vectors and

\theta

is the acute angle between them, then

2\widehat u \times 3\widehat v

is a unit vector for :

A
no value of $\theta$
B
exactly one value of $\theta$
C
exactly two values of $\theta$
D
more than two values of $\theta$

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