PHYSICS OCR B- Electron scattering

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lollipop
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#1
Report Thread starter 15 years ago
#1
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)

BUT

I went and looked in the textbook, and the formula in there is

Wavelength = d Sin (theta) / 1.2

Wtf????

Anyone got any ideas, or know if it was an error on the exam paper???

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minkailin
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Report 15 years ago
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i think the first equation is the correct one
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currency_westlake
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Don't worry, there are several different versions... My exam board always specifies which one to use, I'm sure yours does too.
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