What is wave number ? How is it related to wave length ?

1.	What is wave number ? How is it related to wave length ?
Answer» Answer: The WAVE number for an EM field is equal to 2 PI divided by the WAVELENGTH in meters. (In some references, it is defined as the reciprocal of the wavelength in meters; in still others, it is defined as the reciprocal of the wavelength in CENTIMETERS.) As the wavelength grows shorter, the wave number becomes larger.

Answer»

Answer:

The WAVE number for an EM field is equal to 2 PI divided by the WAVELENGTH in meters. (In some references, it is defined as the reciprocal of the wavelength in meters; in still others, it is defined as the reciprocal of the wavelength in CENTIMETERS.) As the wavelength grows shorter, the wave number becomes larger.