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JEE Main 2021 · MathsMultiple choiceSingle correctMediumMulti-step

JEE Main 16 March 2021, Shift 2, Maths Q66

Question 66 of 90 in this shift, Maths question 6 of 30, Section A.

Let C be the locus of the mirror image of a point on the parabola

y^2=4x

with respect to the line

y=x

. Then the equation of tangent to C at P(2, 1) is :

(1) $x+3y=5$
(2) $2x+y=5$
(3) $x-y=1$ Official answer
(4) $x+2y=4$

Official answer

Option 3

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.