The slope of the normal at the point \[(a{{t}^{2}},\ 2at)\] of the parabola \[{{y}^{2}}=4ax\], is [MNR 1991; UPSEAT 2000]

The slope of the normal at the point \[(a{{t}^{2}},\ 2at)\] of the par

1.	The slope of the normal at the point \[(a{{t}^{2}},\ 2at)\] of the parabola \[{{y}^{2}}=4ax\], is [MNR 1991; UPSEAT 2000]
A.	\[\frac{1}{t}\]
B.	t
C.	?t
D.	\[-\frac{1}{t}\]
Answer» D. \[-\frac{1}{t}\]

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The slope of the normal at the point \[(a{{t}^{2}},\ 2at)\] of the parabola \[{{y}^{2}}=4ax\], is [MNR 1991; UPSEAT 2000]

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