- #1
twinsen
- 45
- 0
Hi
I am wondering why the relative permittivity given by a source for water is 80 and the refractive index is 1.333 is this due to differences in wavelengths.
If so can anyone point me to a source which has the relative permittivity at visible wavelengths.
Also would i be right in saying that at ~20degreesC the relative permeability of water would be about 1 because it isn't magnetic.
Thanks
Alex
I am wondering why the relative permittivity given by a source for water is 80 and the refractive index is 1.333 is this due to differences in wavelengths.
If so can anyone point me to a source which has the relative permittivity at visible wavelengths.
Also would i be right in saying that at ~20degreesC the relative permeability of water would be about 1 because it isn't magnetic.
Thanks
Alex