ta co :x=3,3.$10^{-3}=k.i=k.\frac{\lambda.D}{a}\Rightarrow 3,3=k.\lambda\Rightarrow \frac{3,3}{\lambda}=k$ do k nguyen va $\lambda\in \left[ {0,4;0,75} \right]\Rightarrow $ ta co k=(5,6,7,8,) voi cac $\lambda$ tuong ung vay co 4 buc xa$\Rightarrow $ B dung
ta co :x=3,3.$10^{-3}=k.i=k.\frac{\lambda.D}{a}\Rightarrow 3,3=k.\lambda\Rightarrow \frac{3,3}{\lambda}=k$ do k nguyen va $\lambda\in \left[ {0,4;0,75} \right]\Rightarrow $ ta co k=(5,6,7,8,) voi cac $\lambda$ tuong ung vay co 4 buc xa$\Rightarrow $ B dung
ta co :x=3,3.$10^{-3}=k.i=k.\frac{\lambda.D}{a}\Rightarrow 3,3=k.\lambda\Rightarrow \frac{3,3}{\lambda}=k$ do k nguyen va $\lambda\in \left[ {0,4;0,75} \right]\Rightarrow $ ta co k=(5,6,7,8,) voi cac $\lambda$ tuong ung vay co 4 buc xa$\Rightarrow $ B dung