Difference between E=p²/2m and E=hf

Context: Undergrad
Thread starter alik
Start date Jun 20, 2007
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E=hf Formulas

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alik

Thread starter
Jun 20, 2007

What is the difference between formulas E=p^2/2m and E= hf ?

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jordi

Jun 20, 2007

You cannot understand a formula without its context. The first E in reality means: Energy of a non-relativistic, non-interacting, classical particle. The second E refers to the energy of a non-interacting, quantum photon.

mjsd

Homework Helper

Jun 20, 2007

p^2/2m is non-relativistic kinetic energy
E=hf usually means total energy of a photon

Difference between E=p²/2m and E=hf

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Difference between E=p²/2m and E=hf

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