1.

The normal at the point \[(bt_{1}^{2},\ 2b{{t}_{1}})\] on a parabola meets the parabola again in the point \[(bt_{2}^{2},\ 2b{{t}_{2}})\], then [MNR 1986; RPET 2003; AIEEE 2003]

A.            \[{{t}_{2}}=-{{t}_{1}}-\frac{2}{{{t}_{1}}}\]                                    
B.            \[{{t}_{2}}=-{{t}_{1}}+\frac{2}{{{t}_{1}}}\]
C.            \[{{t}_{2}}={{t}_{1}}-\frac{2}{{{t}_{1}}}\]                                     
D.            \[{{t}_{2}}={{t}_{1}}+\frac{2}{{{t}_{1}}}\]
Answer» B.            \[{{t}_{2}}=-{{t}_{1}}+\frac{2}{{{t}_{1}}}\]


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