(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

When does the rules of algebra not apply in physics?

I mean in photo electric effect E = K + [tex]\Phi[/tex] right?

and phi is a constant

so if we have twice the energy 2E = 2K + 2 [tex]\Phi[/tex]

and then E_{2}=K_{2}+ [tex]\Phi[/tex]_{2}

and then [tex]\Phi[/tex]_{2}= 2E1 - 2K1

[tex]\Phi[/tex]_{2}/2 =E1-K1 = [tex]\Phi[/tex]_{2}/2 = [tex]\Phi[/tex]_{1}so phi changed...

but phi is a constant right dependent only on the type of material so it wont change? (I have very little knowledge in photo electric effects this is mainly how and when algebra does not apply in physics)

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Algebra and physics

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