If two different tangents of parabola \( y^{2}=4 x \) are the P nor...

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If two different tangents of parabola \( y^{2}=4 x \) are the
P normals to the parabola \( x^{2}=4 b y \), then \( |b| \) is:

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(1) Greater than \( \frac{1}{2 \sqrt{2}} \)
(2) Less than \( \frac{1}{2 \sqrt{2}} \)
(3) Greater than \( \frac{1}{\sqrt{2}} \)
(4) Less than \( \frac{1}{\sqrt{2}} \)
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