If tangents are drawn from any point on the line \[x+4a=0\] to the parabola \[{{y}^{2}}=4ax,\] then their chord of contact subtends angle at the vertex equal to

If tangents are drawn from any point on the line \[x+4a=0\] to the par

1.	If tangents are drawn from any point on the line \[x+4a=0\] to the parabola \[{{y}^{2}}=4ax,\] then their chord of contact subtends angle at the vertex equal to
A.	\[\frac{\pi }{4}\]
B.	\[\frac{\pi }{3}\]
C.	\[\frac{\pi }{2}\]
D.	\[\frac{\pi }{6}\]
Answer» D. \[\frac{\pi }{6}\]

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If tangents are drawn from any point on the line \[x+4a=0\] to the parabola \[{{y}^{2}}=4ax,\] then their chord of contact subtends angle at the vertex equal to

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