Ive just been doing some past papers for 2moros exam....
and came across this question where they give u a formula to work out the electron wavelengths...using
Wavelength = 1.2 b Sin (theta)
I went and looked in the textbook, and the formula in there is
Wavelength = d Sin (theta) / 1.2
Anyone got any ideas, or know if it was an error on the exam paper???
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PHYSICS OCR B- Electron scattering watch
- Thread Starter
- 16-06-2004 17:55
- 16-06-2004 18:03
i think the first equation is the correct one
- 16-06-2004 20:00
Don't worry, there are several different versions... My exam board always specifies which one to use, I'm sure yours does too.