Forwarded from ملازم الاشعه مرحلة رابعة (هـُمام)
اسئله المحاضره الاولى.docx
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مشاركة اسئله المحاضره الاولى.docx
اسئله المحاضره الثانيه shimming.docx
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مشاركة اسئله المحاضره الثانيه shimming.docx
اسئله المحاضره الثالثه atomic structure.docx
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مشاركة اسئله المحاضره الثالثه atomic structure.docx
اسئله المحاضره الرابعهmagnetic moments.docx
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مشاركة اسئله المحاضره الرابعهmagnetic moments.docx
مرحبا Brothers
تقرون هذول المفات الأمتحان بيهم اليوم 45 سؤال لا تنسون اليوم نخلصها ☝🏻
👋🏻
تقرون هذول المفات الأمتحان بيهم اليوم 45 سؤال لا تنسون اليوم نخلصها ☝🏻
👋🏻
🔥4
مرحبا brothers اعتذر عن التأخير، الى أن كملت وخليت الاسئلة المهمة، هسة نبلش جاهزين؟
❤1
The most abundant atom in the human body is:
Anonymous Quiz
17%
oxygen
7%
nitrogen
5%
carbom
71%
hydrogen
❤1
The nucleus of an atom contains
Anonymous Quiz
0%
electrons only
78%
proton and neutron
4%
neutron only
18%
electrons and neutron
❤1
The atomic number represents the number of:
Anonymous Quiz
4%
neutron
69%
proton
19%
electron
7%
molecules
❤1
Atoms with the same number of protons but different numbers of neutrons are called:
Anonymous Quiz
3%
Ions
13%
Molecules
82%
Isotopes
1%
Elements
❤1
A rotating electrical charge produces a:
Anonymous Quiz
1%
Light wave
93%
magnetic field
4%
sound wave
1%
heat energy
❤1
The hydrogen nucleus used in MRI contains:
Anonymous Quiz
43%
1 protons
33%
2 protons
22%
1 neutrons
1%
2 neutrons
❤1
The magnetic property of a nucleus is called:
Anonymous Quiz
3%
magnetic wave
81%
magnetic moment
15%
magnetic charge
1%
magnetic energy
❤1
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❤1
Thermal motion (heat) causes magnetic moments to be:
Anonymous Quiz
6%
perftly aliynged
83%
randomly oriented
9%
faster
2%
stationary
The ratio of aligned protons increases when:
Anonymous Quiz
2%
Temperature increases
14%
Proton density decreases
0%
Gravity increases
84%
Magnetic field strength increases
The nucleus acting like a magnet is called a:
Anonymous Quiz
39%
magnetic dipole
56%
magnetic field
2%
elctric field
3%
Ion pair
The Nobel Prize in 1952 for discovering NMR was awarded to:
Anonymous Quiz
14%
lautarbur and mansfield
75%
bloch and purcell
8%
damadian and ernst
3%
mansfield and cormack
The unit of magnetic field strength used in MRI is:
Anonymous Quiz
2%
gauss
10%
joule
89%
tesla
0%
watt