Difference between revisions of "Annihilation"
| Line 15: | Line 15: | ||
<math>E_0</math> = Rest Mass Energy of each particle | <math>E_0</math> = Rest Mass Energy of each particle | ||
| − | <math>hf</math> = The [[energy]] of | + | <math>hf</math> = The [[energy]] of each[[Gamma-ray|gamma ray]] [[photon]] emitted |
<math>h</math> = [[Planck's Constant]] | <math>h</math> = [[Planck's Constant]] | ||
<math>f</math> = The [[frequency]] of the emitted [[photon]] | <math>f</math> = The [[frequency]] of the emitted [[photon]] | ||
Revision as of 18:31, 23 January 2021
Key Stage 5
Meaning
Annihilation is the process in which matter and antimatter interact converting all their rest mass into energy resulting in a pair of gamma ray photons being emitted in opposite directions.
About Annihilation
- Annihilation occurs when particles of matter and antimatter interact at extremely close range.
- During annihilation the total rest mass of, as well as their kinetic energy results in the production of two gamma ray photons.
- In annihilation conservation of momentum is conserved due to the momentum of the two gamma ray photons travelling in opposite directions.
Equation
\(2E_0 = 2hf\)
Where
\(E_0\) = Rest Mass Energy of each particle
\(hf\) = The energy of eachgamma ray photon emitted
\(h\) = Planck's Constant