# Scherrer's confusion

## Main Question or Discussion Point

hi
is theta used in degree or radians in Scherrer's equation..

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Orodruin
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What appears is not $\theta$ but $\cos \theta$. It should be rather clear how this is to be interpreted.

we need to take cosine of "THETA". Is it measured in degrees or radian,,, what is think is theta is in degrees, but confused...

Orodruin
Staff Emeritus
Homework Helper
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Do you understand what the cosine function does?

Do you understand what the cosine function does?
YESS! actually i'm analyzing XRD results, from Origin Software... to find FWHM this theta is required....

Orodruin
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