duhf

Created by: jatyization
Created on: 10-05-14 00:39

What is the definition of specific charge and its units?

The ratio of charge to mass in the nucleus; units are CKg

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What is the process of pair production?

Photon interacts with orbital electron; energy of photon used to make particle and antiparticle pair; photon interacts with interacting particle to conserve momentum

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Why can pair production not occur when a photons frequency is below a certain value?

energy of photon depends on frequency; not enough energy when frequency is below a certain value; to provide rest energy of particles

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What is the ground state of an atom?

When electrons are in their lowest energy level

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Why are photons of only certain frequencies cause excitation in an atom?

Electrons occupy discrete energy levels; need to absorb exact amount of energy to move to higher energy level; photon need to have certain frequency; all of energy of photon absorbed; 1 on 1 interaction

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Other cards in this set

Card 2

Front

What is the process of pair production?

Back

Photon interacts with orbital electron; energy of photon used to make particle and antiparticle pair; photon interacts with interacting particle to conserve momentum

Card 3

Front

Why can pair production not occur when a photons frequency is below a certain value?

Back

Card 4

Front

What is the ground state of an atom?

Back

Card 5

Front

Why are photons of only certain frequencies cause excitation in an atom?

Back

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