- #1
aama100
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Homework Statement
Some microowaves (EM radiation) have wavelength of 3 cm. What would be the order of magnitude of grating spacing needed to observe these ?
Homework Equations
n[tex]\lambda[/tex] = d sin[tex]\theta[/tex]
The Attempt at a Solution
First of all, I am not really sure if I was using the correct equation for that question but all what I am doing is about the diffraction grating spectrometer, gas spectra wavelength of light. In that question there was no angle so I can find n. The only thing is the wavelength given. I do not want you to solve it. I just want you to lead me to where should I go ?