A wave on a string has a frequency of 10 Hz and a wavelength of 2 m. What is the

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Question: A wave on a string has a frequency of 10 Hz and a wavelength of 2 m. What is the speed of the wave? (2022)

Options:

Correct Answer: 10 m/s

Exam Year: 2022

Solution:

Wave speed v is given by v = fλ. Thus, v = 10 Hz * 2 m = 20 m/s.

A wave on a string has a frequency of 10 Hz and a wavelength of 2 m. What is the speed of the wave? (2022)

A wave on a string has a frequency of 10 Hz and a wavelength of 2 m. What is the speed of the wave? (2022)

Step 1: Identify the frequency of the wave. In this case, the frequency (f) is given as 10 Hz.
Step 2: Identify the wavelength of the wave. Here, the wavelength (λ) is given as 2 m.
Step 3: Use the formula for wave speed, which is v = f * λ. This means you multiply the frequency by the wavelength.
Step 4: Substitute the values into the formula: v = 10 Hz * 2 m.
Step 5: Calculate the result: 10 * 2 = 20.
Step 6: State the final answer: The speed of the wave is 20 m/s.

Wave Speed Calculation – Understanding the relationship between frequency, wavelength, and wave speed, expressed by the formula v = fλ.