If \( 2 x+y+\lambda=0 \) is a normal to the parabola \( y^{2}=8 x \...

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If \( 2 x+y+\lambda=0 \) is a normal to the parabola \( y^{2}=8 x \),
\( \mathrm{P} \) then the value of \( \lambda \) is:

W
(1) -24
(2) -16
(3) -8
(4) 24
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