P
pinhpooh
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
trong thi nghiem y_ang vgiao thoa as,nguon sang phat dng thoi 2 buc xa don sac.trong buc xa mau đỏ co buoc song la 720nm va buc xa mau luc co lamda(tu 500 den 575nm).tren man quan sat,giua 2 van sang gan nhau nhat va cung mau vs van sang trung tam co 8 van sang lục /![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
>-\Rightarrow gia tri cua lamda\sqrt[n]{A}:khi (58)::khi (122)::khi (99):