Asked by Tammy

I am having a hard time on how to get V in wavelength= h/mv

If I multiply by mv
then I get W(mv)=h
Then I get Wmv=h
I divide by Wm and get V=h/Wm
...but that doesn't seem to work.

My other question is if I am using the correct values.

W (wavelength or lamda)= 7.11x10^(-11)m
h= 6.63x10^(-34)
m= 96g

I need more help!!

Answers

Answered by bobpursley
change mass to kg, but shouldn't it be the mass of an electron? That is NOT 96 grams.
Answered by Tammy
Thank you sooo much, I was using grams of Molybdenum, so I looked up the mass of an electron and converted it and got the correct answer. I thought I didn't solve for V right, I'm amazed that I got that right.
Thank you for your help!
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