frequency to wavelenght conversion

[Tracid]

Hi!
could anybody help me? i know its a very simple question,but i dont know.
for example whats the wavelenght of a 10Mhz signal?Whats the formula for conversion?

Thanks very much!

 

[jallem]

lambda (mts) = 300/f(MHz). "only free space"

Example: f = 10 MHz, lambda = 300/10 = 30 meters.

For embedded(microstrip, stripline, etc) a good
approximation is:
lambda (mts) = 300/[f(MHz)xsqrt((epsilon +1)/2)]
remember it is only an approximation.

 

[Tracid]

Thank you very much!
so if the frequency is in MHz range then the wavelenght will be in meter.
and if i want to get the frequency from 650nm light then i have to adjust.

sorry english shortenings are difficult to me.what is (mts). and epsilon?

 

[jallem]

mts = meters
epsilon = dielectric constant

 

[Tracid]

thanks! otherwise is there any explanation why is that constant value 300?

 

[kender]

thanks! otherwise is there any explanation why is that constant value 300?

300 is the approximate speed of light in vacuum in millions of meters (megameters) per second (more accurate value is 299,792,458 m/sec). Since your frequency is in megahertz, the "megas" cancel.

 

[nanang_00]

in general, the formula will be:
freq = v/lambda,
freq is fequency in Hz
v is electromagnetic wave velocity (approx. 300,000,000 m/s in space)
lambda is wavelength in meters

pls correct if im wrong

 

[ujjwal verma]

to convert frequency to wavelength use this simple formulae......

fλ=c

where c=speed of light in vaccum
f= frequency in Hz
λ=wavelength

 

[pfm_pfm]

learning.....

 

[Tracid]

Thanks finally! hm,i thought it must be something about the velocity of light.then my thought was right.