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Vector Algebra question

2025 · 22 Jan · Shift 2 · Q36

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JEE Main
Mathematics
Vector Algebra
2025 · 22 Jan · Shift 2 · Q36

Vector Algebra question

2025 · 22 Jan · Shift 2 · Q36

JEE MainMathematicsVector AlgebraMCQ+4 / −1

Let

\vec{a}

and

\vec{b}

be two unit vectors such that the angle between them is

\frac{\pi}{3}

. If

\lambda \vec{a}+2 \vec{b}

and

3 \vec{a}-\lambda \vec{b}

are perpendicular to each other, then the number of values of

\lambda

in

[-1,3]

is :

A
1
B
3
C
2
D
0

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