Answer
The condition for constructive interferences is
$
2 h \sin \theta=\left(m+\frac{1}{2}\right) \lambda, \quad m=0,1,2, \ldots
$
Work Step by Step
The condition for constructive interferences is
$
2 h \sin \theta=\left(m+\frac{1}{2}\right) \lambda, \quad m=0,1,2, \ldots
$
