Another vector perpendicular to vector F = 4i − 3j is

Question

Another vector perpendicular to vector \(\vec F =4 \hat i -3 \hat j\) is

(A) \(4\hat i + 3\hat j\)

(B) \(6\hat i\)

(C) \(7\hat k\)

(D) \(3\hat i - 4\hat j\)

Answer 1

Correct option is (C) \(7\hat k\)

\(\vec F\) lie in the x - y plane, so a vector along z-axis will be perpendicular to \(\vec F\).

Hence, \(7\hat k\) is the vector along z-axis and perpendicular to \(\vec F\).