angle of incidence
- The angle that a line, such as a ray of light,
falling on a surface or interface makes with the normal
drawn at the point of incidence. For a plane mirror,
the angle of incidence equals the angle
AND OPTICAL PHENOMENA
The angle at which a wing is fixed to the fuselage of an airplane.
It is the angle formed by the chord of the airfoil and the longitudinal axis
of the plane. This longitudinal axis is the imaginary line drawn through
the fuselage from the front of the airplane to the rear.
Source: U.S. Centennial of Flight Commission