A particular aerofoil is able to produce lift at 0 degrees angle of attack this is because ofQuestion 51Select one:a.The dihedral angle of the wingb.The angle of incidence of the wingsc.The cambered cross-section of the wingd.The aspect ratio of the wing

The answer is c. The cambered cross-section of the wing.

Here's why:

An aerofoil can produce lift at 0 degrees angle of attack due to its cambered cross-section. The camber of an aerofoil is the curvature of its upper and lower surfaces. A cambered aerofoil has a shape that is curved or bulged on the top and flatter on the bottom. This shape causes the air above the wing to move faster than the air below the wing, creating a pressure difference. According to Bernoulli's principle, the pressure on the top of the wing is lower than the pressure on the bottom of the wing, which creates lift. This can occur even when the angle of attack is 0 degrees.

The other options are not correct because:

a. The dihedral angle of the wing: This refers to the upward angle of the wings from a horizontal perspective. It contributes to the stability of the aircraft, not the lift.

b. The angle of incidence of the wing: This is the angle between the chord line of the wing and the longitudinal axis of the aircraft. It doesn't create lift at 0 degrees angle of attack.

d. The aspect ratio of the wing: This is the ratio of the wing's length to its width. While it does affect the efficiency of the wing, it doesn't create lift at 0 degrees angle of attack.