Question: The lines $p\left(p^{2}+1\right) x-y+q=0$ and $\left(p^{2}+1\right)^{2} x+\left(p^{2}+1\right) y+2 q=0$ are Perpendicular to a common line for :
Exactly two values of p
More than two values of p
No value of p
Exactly one value of p
Correct Option: , 4
Solution: