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TN XII Math
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Objective type Questions and Answers
The tangents at the end of any focal chord to the parabola $y^{2}=12x$ intersect on the line
\[\begin{array}{1 1}(1)x-3=0&(2)x+3=0\\(3)y+3=0&(4)y-3=0\end{array}\]
tnstate
class12
bookproblem
p274
objective
q94
modelpaper
jun-2007
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asked
May 13, 2013
by
poojasapani_1
edited
May 15, 2014
by
meena.p
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1 Answer
The tangent at the end of any focal chord to the parabola intersect on the directrix.
The equation of the parabola is $y^2=12x$
$y^2=4(3)x=>a=3$
The equation of the directrix is
$x=-3$
ie $x+3=0$
Hence 2 is the correct answer.
answered
May 15, 2014
by
meena.p
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