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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

Preview of the front of card 3

Card 4

Front

What is the ground state of an atom?

Back

Preview of the front of card 4

Card 5

Front

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

Back

Preview of the front of card 5

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