Yeah, the angle of incidence is equal to the angle of reflection.

入射角等于反射角。

So, we’d say that the angle of reflection is equal to the angle of incidence.

所以，我们会说反射角等于入射角。

So, we'd say that the angle of reflection is equal to the angle of incidence.

因此，我们可以说反射角 等于入射角。

And whether that interference is constructive or destructive depends on the thickness of the oil and the light's angle of incidence.

而这种干扰是建设性的还是破坏性的，取决于油的厚度和光的入射角。

Snell’s Law says that angles of refraction are determined by the index of refraction for each medium and the angle of incidence.

斯涅尔定律指出，折射角由每种介质的折射率和入射角决定。

Snell's Law says that angles of refraction are determined by the index of refraction for each medium and the angle of incidence.

折射定律说折射角由每种介质的折射率和入射角决定。

The angle of a light ray after it passes from one medium to another is called the angle of refraction, and it’s related to the angle of incidence by Snell’s Law.

光线从一种介质进入另一种介质后的角度称为折射角，根据斯涅尔定律，它与入射角有关。

The angle of a light ray after it passes from one medium to another is called the angle of refraction, and it's related to the angle of incidence by Snell's Law.

光线从一种介质射入另一种介质后的夹角称为折射角，根据折射定律它与入射角有关。

So if I point the flashlight at a 30 degree angle – an angle that we call the angle of incidence – it would leave at a 30 degree angle in the other direction.

如果我将灯指向 30 度角——我们称之为入射角——你会在另一个方向留下 30 度角。