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JEE · NEET Previous Year Question

$A = 3 i^+ 4 j^Find a vector perpendicular to A in the plane of A$

Topic: NEET PYQ

Answer: D. Full step-by-step solution below.

A $k^$
B $- 3 i^- 4 j^$
C $4 j^- 3 i^$
D $4 i^- 3 j^$

Correct answer: D

Solution

(d) (a) is also perpendicular to A but not in the same plane. Check using A . B = 0

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