f = 40Hz
What is frequency?
In physics, the term frequency refers to the number of waves that pass a fixed point in unit time.
It also describes the number of cycles or vibrations undergone during one unit of time by a body in periodic motion.
Wavelength (λ) - The wavelength of light is defined as the distance between the crests or troughs of a wave motion.
The wave equation: v = fλ
As per question,
Wavelength = 5.00 cm
v = 2.00 m/s.
v=fλ
f =v / λ
f = 2/5 x 10⁻² = 40 Hz
f = 40Hz
Therefore,
The frequency is 40Hz.
Learn more about frequency here:https://brainly.com/question/14316711
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