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Friday, 9 October

JEE Main 2021 · MathsMultiple choiceSingle correctMediumCalculation

JEE Main 16 March 2021, Shift 2, Maths Q65

Question 65 of 90 in this shift, Maths question 5 of 30, Section A.

If the points of intersections of the ellipse x216+y2b2=1\frac{x^2}{16}+\frac{y^2}{b^2}=1 and the circle x2+y2=4bx^2+y^2=4b, b>4b>4 lie on the curve y2=3x2y^2=3x^2, then b is equal to :
  1. (1)5
  2. (2)6
  3. (3)10
  4. (4)12Official answer

Official answer

Option 4

NTA final key.

Chapter
Conic Sections
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.