Q. The equation of normal at $\left( at,\frac{a}{t} \right)$ to the hyperbola $xy = a^{2}$ is
A) $xt^{3} - yt + at^{4} - a = 0$
B) $xt^{3} - yt - at^{4} + a = 0$
C) $xt^{3} + yt + at^{4} - a = 0$
D) None of these
Explanation
The correct answer is Option B: $xt^{3} - yt - at^{4} + a = 0$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.