If a wave has a frequency of 50 Hz and a wavelength of 3 m, what is its speed? (

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Question: If a wave has a frequency of 50 Hz and a wavelength of 3 m, what is its speed? (2019)

Options:

Correct Answer: 100 m/s

Exam Year: 2019

Solution:

Wave speed (v) can be calculated using the formula v = fλ. Here, v = 50 Hz * 3 m = 150 m/s.

If a wave has a frequency of 50 Hz and a wavelength of 3 m, what is its speed? (2019)

If a wave has a frequency of 50 Hz and a wavelength of 3 m, what is its speed? (2019)

Step 1: Understand the formula for wave speed, which is v = fλ, where v is the speed, f is the frequency, and λ (lambda) is the wavelength.
Step 2: Identify the values given in the question. The frequency (f) is 50 Hz and the wavelength (λ) is 3 m.
Step 3: Substitute the values into the formula. Replace f with 50 Hz and λ with 3 m in the formula v = fλ.
Step 4: Calculate the wave speed. Multiply 50 Hz by 3 m to get v = 150 m/s.
Step 5: Conclude that the speed of the wave is 150 m/s.

Wave Speed Calculation – The relationship between wave speed, frequency, and wavelength is given by the formula v = fλ, where v is the wave speed, f is the frequency, and λ is the wavelength.