Question

A wave travels at a speed of 34 cm/s. It’s wavelength is 18 cm. What is the period of the wave?
0.75 s
1.2 s
0.66 s
0.53 s
Regions of compression and rarefaction help define _______.
Electromagnetic waves
Longitudinal waves, but not transverse waves
Transverse waves, but not longitudinal waves
All mechanical waves
period is time, so
(18cm) / (34 cm/s) = 18/34 s

consider sound waves vs light waves
Wavelength = V * T = 18.
34 * T = 18,
T = 0.53 s.

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