JEE Main · 2022 · 25 Jul 2022 · Shift 2 · Hyperbola

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Let the foci of the ellipse and the hyperbola coincide. Then the length of the latus rectum of the hyperbola is:-
  1. (A)
  2. (B)
  3. (C)
  4. (D)✓ Correct

Answer: (D)

Solution

For the ellipse , , , so , giving foci at .

For the hyperbola , rewrite as . So , .

For hyperbola, . Since foci coincide, , so , giving .

Latus rectum of hyperbola = .

JEE Main · 2022 · 25 Jul 2022 · Shift 2 · Single correct option

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