https://bgk-photo.cdn.bcebos.com/doc/pic/item/6159252dd42a283457f8eb1753b5c9ea15cebf54.jpg如图所示为一束光从空气斜射到某液面上，与液面的夹角为30°，且反射光与折射光相互垂直，则反射角是______，折射角是______．