Four Wave Functions Are Given Below

question 45

Multiple Choice

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 wave speeds, 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

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