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原子物理 2024智慧树满分答案
第一章 单元测试
1、单选题:
The energy scale of atom is ( ).
A: TeV
B: GeV
C: eV
D:MeV
答案: eV
2、单选题:
The density scale of atom is ( )
A:1010 g/cm3
B:1 g/cm3
C:1015 g/cm3
D:102 g/cm3
答案: 1 g/cm3
3、单选题:
Who did propose that the matter was indivisible in ancient Greece? ( )
A:Plato
B:Aristotle
C:Democracy
D:Archimedes
答案: Democracy
4、单选题:
Who did firstly show the Periodic table? ( )
A:Mendeleev
B:Avogadro
C:Proust
D:Faraday
答案: Mendeleev
5、单选题:
How many elements are discovered up to 2019? ( )
A:118
B:117
C:115
D:112
答案: 118
6、单选题:
What was found by Roentgen in 1895? ( )
A:Proton
B:neutron
C:X ray
D:Electron
答案: X ray
7、单选题:
The law of black-body radiation was given in 1900 by ( )?
A:Plank
B:Boltzmann
C:Rutherford
D:Bohr
答案: Plank
8、单选题:
Which model can exactly solve the Hydrogen system? ( )
A:Bohr model
B:Schrodinger equation
C:Rutherford model
D:Dirac equation
答案: Dirac equation
9、单选题:
Which field is not related to atomic physics? ( )
A:Plasma physics
B:Astrophysics
C:Literature
D:Environment
答案: Literature
10、单选题:
Who did not join the Solvay conference held in 1927? ( )
A:Einstein
B:Pauli
C:Fermi
D:Schrodinger
答案: Einstein
第二章 单元测试
1、单选题:
State the mass of Avogadro’s number of atoms for Copper ( ).
A:127.10 g
B:63.55 kg
C:23.22 g
D:63.55 g
答案: 63.55 g
2、单选题:
The mass of a single iron atom is 9.3 × 10–23 g. Determine the number if iron atoms in regular cube that measures exactly 10 cm on an edge. The density of iron is 7.86 g/cm3 ( )
A:3.5 × 1025
B:8.5 × 1025
C:7.5 × 1024
D:4.2 × 1026
答案: 8.5 × 1025
3、单选题:
The mass of a proton is ( )
A: 0.511 MeV
B:1.673× 10-24 g
C:3.344× 10-27 kg
D:10.07 u
答案: 1.673× 10-24 g
4、单选题:
In Rutherford atomic model alpha particles were stroked on ( )
A:titanium
B:aluminum
C:silver
D:gold
答案: gold
5、单选题:
For aluminum ( Z2 = 13) and gold ( Z2 = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? ( )
A:134.5
B:0.03
C:36.93
D:1.47
答案: 36.93
6、单选题:
For an 8.0-MeV α particle scattering from a gold atom ( Z = 79 ) of radius 0.135 nm, the largest scattering angle, θ is ? ( )
A:
B:
C:
D:
答案:
7、单选题:
According to structure of atom electron should fall in ( )?
A:nucleus
B:outer environment
C:shell
D:space
答案: nucleus
8、单选题:
Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? ( )
A:The atom is mainly empty space
B:The nucleus must be positively charged
C:The nucleus must be very small compared to the atom
D:The mass of the atom is mostly concentrated in the nucleus
答案: The nucleus must be positively charged
9、单选题:
A 5.0-MeV alpha particle approaches a gold nucleus with an impact parameter of 2.6×10-13 m. Through what angle will it be scattered? ( )
A:10°
B:Plasma physics
C:Astrophysics
D: Environment
答案: 10°
10、单选题:
What fraction of a beam of 7.7-MeV alpha particles incident upon a gold foil 3.0×10-7 m thick is scattered by less than 1°? ( )
A:1.35
B: 0.67
C:0.05
D:0.84
答案: 0.84
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