JEE Main · 2022 · 27 Jun 2022 · Shift 1 · Ellipse

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Let the eccentricity of an ellipse , be . If this ellipse passes through the point , then is equal to :
  1. (A)29
  2. (B)31✓ Correct
  3. (C)32
  4. (D)34

Answer: (B)

Solution

Given eccentricity . For an ellipse with , . Thus , giving .

The ellipse passes through , so substituting:

Simplifying: .

Then , so .

JEE Main · 2022 · 27 Jun 2022 · Shift 1 · Single correct option

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