Dynamic lift due to spinning is

Explanation:

The Magnus effect describes the phenomenon where a spinning object moving through a fluid experiences a force perpendicular to its direction of motion. This effect is commonly observed in sports like baseball, where a spinning ball curves away from its expected path. The spinning motion causes a pressure difference around the object, resulting in a lift force that alters its trajectory.

The other options are unrelated to dynamic lift due to spinning:

• b) Doppler effect: Refers to the change in frequency or wavelength of a wave in relation to an observer moving relative to the source of the wave.
• c) Pascal effect: Not a standard term in physics; possibly a misreference.
• d) Torricelli’s effect: Relates to the speed of fluid flowing out of an orifice, described by Torricelli's law.