Answer
Pattern reversed
Work Step by Step
Path length: $\frac{\lambda}{2}$
Constructive interference: $\frac{\lambda}{2}+d\sin(\theta)=m\lambda$
$d\sin(\theta)=\lambda(m-\frac{1}{2})$
Destructive interference: $\frac{\lambda}{2}+d\sin(\theta)=(m+\frac{1}{2})\lambda$
$d\sin(\theta)=m\lambda$
The pattern is reversed, meaning the parts where there was light before is now dark and the parts that were dark before have light now.
