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Saturday, 31 October

JEE Main 2022 · MathsMultiple choiceSingle correctMediumCalculation

JEE Main 25 June 2022, Shift 2, Maths Q20

Question 20 of 90 in this shift, Maths question 20 of 30, Section A.

The line y=x+1y = x + 1 meets the ellipse x24+y22=1\frac{x^2}{4} + \frac{y^2}{2} = 1 at two points PP and QQ. If rr is the radius of the circle with PQPQ as diameter then (3r)2(3r)^2 is equal to :
  1. (1)20Official answer
  2. (2)12
  3. (3)11
  4. (4)8

Official answer

Option 1

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 108 of the 174 JEE Main shifts held from 2017 to 2026.