Question

The eccentricity of the rectangular hyperbola is

• A. 2
• B. $\sqrt{2}$
• C. \N
• D. None of these

Answer 1

The correct option is B $\sqrt{2}$

In case of rectangular hyperbola,
$a=b\Rightarrow b^2=a^2\Rightarrow a^2(e^2-1)=a^2\Rightarrow e=\sqrt{2}$