Question

1pt wave speed is calculated by dividing ______.
a. wave height by wavelength
b. wavelength by wave height
c. wave period by wavelength
d. wavelength by wave period

Explanation:

To determine how wave speed is calculated, we recall the formula for wave speed (\(v\)): \(v=\frac{\lambda}{T}\), where \(\lambda\) is the wavelength and \(T\) is the wave period. This means wave speed is wavelength divided by wave period.

• Option A: Wave height is not part of the wave speed formula, so A is incorrect.
• Option B: Wave height is irrelevant here, and the division is reversed, so B is incorrect.
• Option C: The formula is wavelength divided by period, not period by wavelength, so C is incorrect.
• Option D: Matches the formula \(v = \frac{\lambda}{T}\), so D is correct.

Answer:

D. wavelength by wave period