Which of the following is not true about mechanical waves?

(a) They are formed by some source of the disturbance.

(b) They are sinusoidal in nature.

(c) They carry energy.

(d) They require a medium through which to propagate.

(e) The wave speed depends on the properties of the medium in which they travel.
tealfrog391

Question

Which of the following is not true about mechanical waves?

(a) They are formed by some source of the disturbance.

(b) They are sinusoidal in nature.

(c) They carry energy.

(d) They require a medium through which to propagate.

(e) The wave speed depends on the properties of the medium in which they travel.

Which of the following is not true about scientific progress? (a) Science progresses through the creation and testing of models of nature. (b) Science advances only through the scientific method. (c) Science avoids explanations that invoke the supernatural.