Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
what is the significance of wavenumber. why is it introduced.
What is the physical significance of the wavenumber? For a linear, isotropic medium, it's an alternative way of expressing the frequency. In this usage, I'd say that the frequency is the fundamental quantity, but it's convenient to use the wavenumber, since the wavevector is important. Due to the temporal boundary conditions, if we have linear media, if we have frequency w=w1 in one medium, we have w=w1 in all media - there won't be any conversion of one frequency to another. For an absorbing medium, the wavenumber tells us how quickly the wave is absorbed. The frequency doesn't tell us this - this is a practical use for using wavenumber instead of frequency.
The wavenumber is the number of wavelengths that fit in a reference length, e.g., cm^(-1), reciprocal centimeters, kaisers in infrared spectroscopy.
The only signifance of wavenumber in the absense of a frequency, is the same as the signifance of the speed of light in the absense of a frequency, which is standing waves.
Hope that helps
Get your questions answered by the expert for free
You will get reply from our expert in sometime.
We will notify you when Our expert answers your question. To View your Question
Win Gift vouchers upto Rs 500/-
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !