angle of reflection


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an·gle of re·flec·tion

the angle that a ray reflected from a surface makes with a line drawn perpendicular to this surface; it is equal to the angle of incidence (2).

angle of reflection

after a collision, the angle at which one object is moving relative to another (usually a stationary surface or environmental factor such as wind). Example: after a snooker ball has hit a cushion, the angle between the ball's direction of travel and the cushion. It is not necessarily the same size as the angle of incidence. Also known as angle of rebound.
References in periodicals archive ?
For each angle of incidence to the right, draw in the angle of reflection.
Remember, the angle of reflection is always equal to and opposite of the angle of incidence.