Respuesta :
Explanation:
(1) We have,
Wavelength of a wave is 2 meters
Frequency of a wave is 6 Hz
It is required to find the velocity of a wave. The velocity of a wave is given by :
[tex]v=f\lambda\\\\v=2\times 6\\\\v=12\ m/s[/tex] Â Â Â
So, the velocity of a wave is 12 m/s.
(2)
Number of waves passing are 100
Time taken to pass the wave is 5 seconds
The frequency of wave is given by total number of waves passing per unit time. So,
[tex]f=\dfrac{100}{5}\\\\f=20\ Hz[/tex]
Frequency of a wave is 20 Hz.
The velocity should be 12 m/s.
The frequency of the wave is 20 Hz.
Calculation of the velocity and frequency of the wave:
Since
The wavelength of a wave is 2 meters
The frequency of a wave is 6 Hz
So, here the velocity should be
= 2*6
= 12 m/s
Now the frequency of the wave is
Since
Number of waves passing are 100
Time taken to pass the wave is 5 seconds
So, the frequency is
= 100 / 5
= 20 Hz
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