# physics, error calculation repost

I need to derive an error equation for Bohr's model to use in my physics lab this week. I am really bad at calculus, so if anyone can help me that would be really great.

the equation is

(1/lambda)=R[(1/n^2final)-(1/n^2initial)]

I've never had to derive anything like this before. Even if someone could tell me HOW to do it, I'll be happy to do it myself.

Thanks

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1. error in what? I am uncertain of what your goal is.

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👨‍🏫
bobpursley
2. Hi Bob, I have to derive the error in the wavelength. I only know how to derive error equations from multiplication or addition/subtraction.

For example, if I needed to derive an arror equation for N=MT it would be deltaN=(deltaM+deltaT)N

So how do I do it for a division question?

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3. sorry, edit, that would be (deltaM/M + deltaT/T)N

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