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
Wavelength = V * T = 18.
34 * T = 18,
T = 0.53 s.
period is time, so
(18cm) / (34 cm/s) = 18/34 s
consider sound waves vs light waves
To find the period of a wave, we can use the formula:
Period = 1 / Frequency
However, since the frequency is not given in the question, we need to calculate it using the given information.
The wave speed (v) is given as 34 cm/s, and the wavelength (λ) is given as 18 cm.
We know that the wave speed can also be calculated as:
v = λ * f
where f is the frequency. Rearranging the equation, we have:
f = v / λ
Plugging in the values, we get:
f = 34 cm/s / 18 cm
Simplifying, we find:
f ≈ 1.89 Hz
Now, we can use the formula to find the period:
Period = 1 / Frequency
Period = 1 / 1.89 Hz
Period ≈ 0.53 s
Therefore, the period of the wave is approximately 0.53 seconds.
Regarding the second question:
Regions of compression and rarefaction help define longitudinal waves, but not transverse waves. In a longitudinal wave, such as a sound wave, the particles of the medium vibrate back and forth in the same direction as the wave is traveling. Compression refers to areas of higher particle density, while rarefaction refers to areas of lower particle density. These variations in particle density are characteristic of longitudinal waves. On the other hand, in transverse waves, such as electromagnetic waves or waves on a string, the particles of the medium vibrate perpendicular to the direction of the wave propagation. Compression and rarefaction are not applicable in transverse waves.