JEE Main 2020 — Ellipse Question with Solution
From: JEE Main 2020 (Online) 7th January Evening Slot
Question
If 3x + 4y = 12 is a tangent to the ellipse
for some R, then the distance between the foci of the ellipse is :
for some R, then the distance between the foci of the ellipse is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
3x + 4y = 12
y = is tangent to
c2 = a2m2 + b2
a2 = 16
Also e =
= =
Distance between focii = 2ae
=
=
y = is tangent to
c2 = a2m2 + b2
a2 = 16
Also e =
= =
Distance between focii = 2ae
=
=
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