Question 1

The third SHELL has how many sub-shells?

Accepted Answer

A)  3 
B)  4 
C)  2 
D)  5 
E)  6 
A)  3 
B)  4 
C)  2 
D)  5 
E)  6 A

Question 2

Paul Dirac

Accepted Answer

A)  set the limits on the probability of measurement accuracy (1927). 
B)  suggested the existence of matter waves (1924). 
C)  predicted the positron from relativistic quantum mechanics (1928). 
D)  discovered the positron using a cloud chamber (1932). 
E)  developed a wave equation for matter waves (1926). 
A)  set the limits on the probability of measurement accuracy (1927). 
B)  suggested the existence of matter waves (1924). 
C)  predicted the positron from relativistic quantum mechanics (1928). 
D)  discovered the positron using a cloud chamber (1932). 
E)  developed a wave equation for matter waves (1926). C

Question 3

A positively charged electron is

Accepted Answer

A)  called a muon. 
B)  called a positron. 
C)  not found in nature. 
D)  called a proton. 
E)  called a pion. 
A)  called a muon. 
B)  called a positron. 
C)  not found in nature. 
D)  called a proton. 
E)  called a pion. B

Question 4

What is the de Broglie wavelength of a ball of mass 200. g moving with a speed of 30. m/s?

Accepted Answer

A)  1.1 × 10-34 m 
B)  2.2 × 10-34 m 
C)  6.67 × 10-27 m 
D)  4.5 × 10-28 m 
E)  6.67 × 10-31 m 
A)  1.1 × 10-34 m 
B)  2.2 × 10-34 m 
C)  6.67 × 10-27 m 
D)  4.5 × 10-28 m 
E)  6.67 × 10-31 m

Question 5

Erwin Schrodinger

Accepted Answer

A)  discovered the positron using a cloud chamber (1932). 
B)  was the first to produce diffraction patterns of electrons in crystals (1927). 
C)  developed a wave equation for matter waves (1926). 
D)  suggested the existence of matter waves (1924). 
E)  set the limits on the probability of measurement accuracy (1927). 
A)  discovered the positron using a cloud chamber (1932). 
B)  was the first to produce diffraction patterns of electrons in crystals (1927). 
C)  developed a wave equation for matter waves (1926). 
D)  suggested the existence of matter waves (1924). 
E)  set the limits on the probability of measurement accuracy (1927).

Question 6

The square of the wave function represents the

Accepted Answer

A)  probability density for finding particle. 
B)  position of the particle as a function of time. 
C)  probability of finding the particle. 
D)  velocity of the particle. 
A)  probability density for finding particle. 
B)  position of the particle as a function of time. 
C)  probability of finding the particle. 
D)  velocity of the particle.

Question 7

Who suggested that material particles (protons, etc.) have wave properties too?

Accepted Answer

A)  Bohr 
B)  Planck 
C)  Schrodinger 
D)  Einstein 
E)  de Broglie 
A)  Bohr 
B)  Planck 
C)  Schrodinger 
D)  Einstein 
E)  de Broglie

Question 8

When a photon is scattered from an electron, there will be an increase in the photon's

Accepted Answer

A)  frequency. 
B)  momentum. 
C)  speed. 
D)  wavelength. 
E)  energy. 
A)  frequency. 
B)  momentum. 
C)  speed. 
D)  wavelength. 
E)  energy.

Question 9

What letters are commonly used to designate the subshells L = 0, 1, 2, 3, and 4?

Accepted Answer

s, p, d, f

Question 10

Nuclear Magnetic Resonance, NMR, is more commonly referred to as

Accepted Answer

A)  MRT. 
B)  NRA. 
C)  CT-scan. 
D)  MRI. 
E)  CAT. 
A)  MRT. 
B)  NRA. 
C)  CT-scan. 
D)  MRI. 
E)  CAT.

Question 11

Heisenberg is especially noted for his

Accepted Answer

A)  improved periodic table. 
B)  wave equation. 
C)  uncertainty principle. 
D)  dirigible. 
E)  photoelectric theory. 
A)  improved periodic table. 
B)  wave equation. 
C)  uncertainty principle. 
D)  dirigible. 
E)  photoelectric theory.

Question 12

A person of mass 50. kg has a wavelength of 4.42 × 10-36 m when running. How fast is she running?

Accepted Answer

A)  3 m/s 
B)  1 m/s 
C)  2 m/s 
D)  4 m/s 
E)  5 m/s 
A)  3 m/s 
B)  1 m/s 
C)  2 m/s 
D)  4 m/s 
E)  5 m/s

Question 13

One reason a photon could not create an odd number of electrons and positrons is that such a process would

Accepted Answer

A)  not conserve energy. 
B)  result in the creation of mass. 
C)  require photon energies that are not attainable. 
D)  defy the uncertainty principle. 
E)  not conserve charge. 
A)  not conserve energy. 
B)  result in the creation of mass. 
C)  require photon energies that are not attainable. 
D)  defy the uncertainty principle. 
E)  not conserve charge.

Question 14

Which quantum number denotes a "shell" and which a "subshell"?

Accepted Answer

A)  L and s 
B)  L and mL 
C)  n and L 
D)  mL and ms 
E)  L and ms 
A)  L and s 
B)  L and mL 
C)  n and L 
D)  mL and ms 
E)  L and ms

Question 15

As a particle travels faster, its de Broglie wavelength

Accepted Answer

A)  remains constant. 
B)  increases. 
C)  decreases. 
D)  could increase or decrease; it depends on other factors. 
A)  remains constant. 
B)  increases. 
C)  decreases. 
D)  could increase or decrease; it depends on other factors.

Question 16

The reason the wavelike nature of a moving baseball is not noticed in everyday life is that

Accepted Answer

A)  its frequency is too small. 
B)  its energy is too small. 
C)  its speed is too small. 
D)  it doesn't have a wavelike nature. 
E)  its wavelength is too small. 
A)  its frequency is too small. 
B)  its energy is too small. 
C)  its speed is too small. 
D)  it doesn't have a wavelike nature. 
E)  its wavelength is too small.

Question 17

The uncertainty in the position of a proton is 0.053 nm. What is the uncertainty in its speed?

Accepted Answer

A)  2.2 m/s 
B)  0.98 km/s 
C)  0.60 km/s 
D)  1.2 km/s 
E)  37. m/s 
A)  2.2 m/s 
B)  0.98 km/s 
C)  0.60 km/s 
D)  1.2 km/s 
E)  37. m/s

Question 18

If someone were to suggest that possibly half of the galaxies in the universe are composed of antiparticles ("anti-galaxies") matter has.)

Accepted Answer

Astronomers see many galaxies colliding,

Question 19

The 4d subshell field can contain how many electrons?

Accepted Answer

A)  14 
B)  4 
C)  2 
D)  7 
E)  10 
A)  14 
B)  4 
C)  2 
D)  7 
E)  10

Question 20

Suppose you were to try to create a proton-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have the same masses, but opposite charges. What energy photon would be required?

Accepted Answer

A)  223. MeV 
B)  0.47 GeV 
C)  1.88 GeV 
D)  1.022 MeV 
E)  940. MeV 
A)  223. MeV 
B)  0.47 GeV 
C)  1.88 GeV 
D)  1.022 MeV 
E)  940. MeV

Exam 28: Quantum Mechanics and Atomic Physics

The third SHELL has how many sub-shells?

Paul Dirac

A positively charged electron is

What is the de Broglie wavelength of a ball of mass 200. g moving with a speed of 30. m/s?

Erwin Schrodinger

The square of the wave function represents the

Who suggested that material particles (protons, etc.) have wave properties too?

When a photon is scattered from an electron, there will be an increase in the photon's

What letters are commonly used to designate the subshells L = 0, 1, 2, 3, and 4?

Nuclear Magnetic Resonance, NMR, is more commonly referred to as

Heisenberg is especially noted for his

A person of mass 50. kg has a wavelength of 4.42 × 10-36 m when running. How fast is she running?

One reason a photon could not create an odd number of electrons and positrons is that such a process would

Which quantum number denotes a "shell" and which a "subshell"?

As a particle travels faster, its de Broglie wavelength

The reason the wavelike nature of a moving baseball is not noticed in everyday life is that

The uncertainty in the position of a proton is 0.053 nm. What is the uncertainty in its speed?

If someone were to suggest that possibly half of the galaxies in the universe are composed of antiparticles ("anti-galaxies") matter has.)

The 4d subshell field can contain how many electrons?

Suppose you were to try to create a proton-antiproton pair by annihilation of a very high energy photon. The proton and the anti-proton have the same masses, but opposite charges. What energy photon would be required?

Measurement and Problem Solving

Kinematics: Description of Motion

Motion in Two Dimensions

Force and Motion

Work and Energy

Linear Momentum and Collisions

Circular Motion and Gravitation

Rotational Motion and Equilibrium

Solids and Fluids

Temperature and Kinetic Theory

Heat

Thermodynamics

Vibrations and Waves

Sound

Electric Charge, Forces, and Fields

Electric Potential, Energy, and Capacitance

Electric Current and Resistance

Basic Electric Circuits

Magnetism

Electromagnetic Induction and Waves

AC Circuits

Reflection and Refraction of Light

Mirrors and Lenses

Physical Optics: The Wave Nature of Light

Vision and Optical Instruments

Relativity

Quantum Physics

The Nucleus

Nuclear Reactions and Elementary Particles

Filters

A person of mass 50. kg has a wavelength of 4.42 × 10^-36 m when running. How fast is she running?