Conic Sections Question 451

Question: The eccentricity of curve $ x^{2}-y^{2}=1 $ is

[MP PET 1995]

Options:

A) $ \frac{1}{2} $

B) $ \frac{1}{\sqrt{2}} $

C) 2

D) $ \sqrt{2} $

Show Answer

Answer:

Correct Answer: D

Solution:

Since it is a rectangular hyperbola, therefore eccentricity $ e=\sqrt{2} $ .

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