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`P` and `Q` are two distinct points on the parabola, `y^2 = 4x` with parameters `t` and `t_1` respectively. If the normal at `P` passes through `Q`, then the minimum value of `t_1 ^2` is

A

8

B

4

C

6

D

2

Text Solution

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The correct Answer is:
D
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MCGROW HILL PUBLICATION-PARABOLA-QUESTIONS FROM PREVIOUS YEARS. AIEEE/JEE MAIN PAPERS
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  16. If the parabolas y^2 = 4b (x - c) " and " y^2 = 8ax have a common t...

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