Q. If $\arg{(z) = \theta}$ then $\arg\left( \overline{z} \right)$ is equal to

A) $\theta - \pi$
B) $\pi - \theta$
C) $\theta$
D) $- \theta$
Explanation

(d)
Let $z = a + ib$
$\therefore\ \ \arg{(z) = \theta = \tan^{- 1}\frac{b}{a}}$
$\because\ \ \ \overline{z} = a - ib$
$\therefore\ \arg{\left( \overline{z} \right) = \tan^{- 1}{\left( - \frac{b}{a} \right) = - \tan^{- 1}{\left( \frac{b}{a} \right) = - \theta}}}$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.