The angle at which light strikes a surface is called the:

Angle of incidence

Explanation:

When light is reflected from a surface, the angle of incidence is always equal to the angle of reflection, where both angles are measured from the path of the light to the normal to the surface at the point at which light strikes the surface. This equality is known as the law of reflection.

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

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