Question

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a wave with a frequency of 2.364 has a wavelength of 10.4045. What is the speed?

a sound wave with a speed of 346 meters per second has a frequency of 30.025. What is the wavelength of this wave?

8.4 waves go by in 6.875 seconds. Calculate the frequency (per 1 second).

Answer 1

Answer: 4.4; 10,339; 0.145

Explanation:

F = c/L f = frequency, c= wave speed L = wavelength

1. 2.364 = 10.4045/c, c= 10.4045/2.364 = 4.4

2. 30.025 = L/346, L = 30.025*346 = 10,339

3. period of the wave  6.875/4 = 1.72 and f= 1/period = 4/6.875 = 0.145