English Dictionary

critical angle

名詞

(physics) The angle of incidence beyond which light traveling through a medium experiences total internal reflection upon encountering a boundary with a less refractive medium.

日本語の意味

（物理学）媒質内部から、屈折率の低い別の媒質へ光が進む際に、全反射を起こす境界となる最大の入射角。

When the incident ray exceeds the critical angle at the glass–air boundary, it undergoes total internal reflection.

入射光がガラスと空気の境界で臨界角を超えると、光はガラス内で全反射します。

意味（1）

(physics) The angle of incidence beyond which light traveling through a medium experiences total internal reflection upon encountering a boundary with a less refractive medium.

意味（2）

(aviation) The angle of attack beyond which an airfoil stalls, experiencing a decrease in lift and increase in drag due to separation of airflow from the upper surface of the airfoil.

意味（3）

(architecture) The angle beyond which a ramp or a set of stairs is considered uncomfortable or unsafe.

critical angles （ plural ）