Four wave functions are given below.
I.y(x, t) = 5sin(4x - 20t + 4)
II.y(x, t) = 5sin(3x - 12t + 5)
III.y(x, t) = 5cos(4x + 24t + 6)
IV.y(x, t) = 14cos(2x - 8t + 3)
Use this exhibit to answer the following question(s).
-Rank the wave functions in order of the magnitude of the frequencies of the waves, from least to greatest.
A)IV, II, I, III
B)IV = II, I, III
C)III, I, II, IV
D)IV, I, II, III
E)III, IV, II, I

Question

Quizplus · Accepted Answer

The frequency of a wave is given by the coefficient of t in the argument of the sine or cosine function. The greater the coefficient, the higher the frequency. In this case, the frequencies are:I. 20II. 12III. 24IV. 8Therefore, the correct answer is A) IV, II, I, III.

Four Wave Functions Are Given Below