Final answer:
The incorrect statement about a transverse wave pulse generated at the free end of a wire hanging vertically is C. The time taken to reach the top end is incorrect; the formula given is for a pendulum, not for wave propagation.
Step-by-step explanation:
The statement related to the question about a wire hanging vertically from a rigid support and a transverse wave pulse generated at the free end that is incorrect is C. The time taken to reach the top end is 2 √L/g. This formula is actually for the period of a simple pendulum, not for a wave pulse traveling through a wire.
The velocity of a wave pulse on a string or wire depends on the tension in the wire and its linear mass density, according to the formula v = √(T/μ), where v is the wave speed, T is the tension, and μ is the linear mass density of the wire.
The acceleration of the wave is not g (where g is the acceleration due to gravity), as the acceleration a in this context refers to the propagation of the wave due to tension, not the acceleration of gravity.