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Basically
Wave length = speed / frequency
A Detailed Explanation:
Terms and definitions:
l = Wave length: It is the distance in meters of one wave cycle (m)
f = Frequency: The amount of cycles per second (Hz)
v = Speed of propagation: The distance the wave can travel in a unit of time (m/s)
t = Time in seconds (s)
d = Distance in meter (m) between two points
- 3*10^8m/s will be used as the speed of light instead of the standard 2.9979*10^8m/s
- When I write f(Hz) or use similar notation, ( ) means the unit of measure, Ex. it means Frequency in Hertz
- * will be used as the symbol for multiplication
- [ ] will be used for comments
Explanation:
l = v * t [meter = meter * second / second]
Since frequency is only the reciprocal of period time.
Thus f = 1 / t
l = v / f
We can also say,
v = l * f
f = v / l
Sound in standard air pressure = 331.3 m/s
[may vary between 331.3 to 331.7 depending on the assumptions during the tests we will use 331.3 m/s at 0°C with air density of 1.2922kg/m3]
Light or Radio = 300 000 000 m/s [for our purpose]
Radio wave length (m)
l = 300 000 000 / f(Hz)
l = 300 / f(MHz)
Ex. A 2.4GHz radio frequency will have a wavelength of l = 300 / 2400 = 0.125meter
Audio wave length (m)
l = 331.3 / f(Hz)
Ex. A 1kHz audio frequency in standard air pressure will have a wave length of l = 331.3/1000 = 0.331 meter
Relevant topics:
Latency:
Latency normally goes together with speed of propagation of the wave. Latency means the time it takes for a wave to travel from one point to another.
Seconds = meter / (meter / second)
t = d / v
Ex. A radio wave will take t = 100 000 / 3*10^8 = 0.33ms to travel 100km
Ex. The sun is 1.49*10^11 meter away, it will take 1.49*10^11 / 3*10^8 = 496.6s = 8.27 minutes for the light [image of] to rich the earth.
Ex. A space object is 1 light-year away from us. It will take 1 * 365.25[days] * 24[hrs] * 60[min] * 60[sec] = 31 557 600s for light to travel 1 light-year.
The distance will be d = t * v = 31 557 600 * 3*10^8 = 9 467 billion km
Wiki User
∙ 11y ago
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How is a waves frequency related to a waves length?
The product of the wave's frequency and the wave's wave length is equal to the speed of propagation of the wave.
What wave has the longest wave length?
radio waves
What wave has longest wave length?
red
If the frequency of a wave increases what does that do to waves wavelenght?
The length of the wave decreases.
What can be determine from the frequency and wavelength of a wave?
The velocity of the wave
How is a waves frequency related to a waves length?
The product of the wave's frequency and the wave's wave length is equal to the speed of propagation of the wave.
What wave has the longest wave length?
radio waves
Which type of wave has the longest wave- length?
Radio waves
What wave has longest wave length?
red
If the frequency of a wave increases what does that do to waves wavelenght?
The length of the wave decreases.
What can be determine from the frequency and wavelength of a wave?
The velocity of the wave
What is the longest wave length?
Radio waves are the electromagnetic waves with longest wavelength.
What is the speed of the waves if the wave period is 4 seconds?
you have to know the wave length.
Do wave length remain constant?
It depends on the type of wave you mean and the situation applied to. Water waves slow down when they reach shallow water and their wave-length shortens. This is why waves 'break', the back-side of the wave over-takes the slower lead-side. Light waves, when they encounter a polar molecule are absorbed and remitted at a shorter wave length. Electrons (wave-particle duality) change their wave-length when changing energy states.
What is determine by wave frequency?
The wave length w=v/frequency.
What is sine wave wave length?
THE DISTANCE BETWEEN TWO WAVES....A wave length is the the point between each wave at the exact same point on each of the waves.
What is the formila for frequency in waves?
Frequency = Speed/Wave length.
