Question 1

Which one of the following is demonstrated by the Compton effect?

Accepted Answer

A) time dilation 
B) length contraction 
C) the uncertainty principle 
D) the wave properties of electrons 
E) the particle properties of electromagnetic radiation 
A) time dilation 
B) length contraction 
C) the uncertainty principle 
D) the wave properties of electrons 
E) the particle properties of electromagnetic radiation

Question 2

Which one of the following quantities is the same for all photons in vacuum?

Accepted Answer

A) speed 
B) frequency 
C) kinetic energy 
D) wavelength 
E) total energy 
A) speed 
B) frequency 
C) kinetic energy 
D) wavelength 
E) total energy

Question 3

The graph shows the variation in radiation intensity per unit wavelength versus wavelength for a perfect blackbody at temperature T.   Complete the following statement: As the blackbody temperature is increased,the peak in intensity of this curve

Accepted Answer

A) will remain constant. 
B) will be shifted to longer wavelengths and its magnitude will increase. 
C) will be shifted to shorter wavelengths and its magnitude will increase. 
D) will be shifted to longer wavelengths and its magnitude will decrease. 
E) will be shifted to shorter wavelengths and its magnitude will decrease. 
A) will remain constant. 
B) will be shifted to longer wavelengths and its magnitude will increase. 
C) will be shifted to shorter wavelengths and its magnitude will increase. 
D) will be shifted to longer wavelengths and its magnitude will decrease. 
E) will be shifted to shorter wavelengths and its magnitude will decrease.

Question 4

What kinetic energy must each neutron in a beam of neutrons have if each has a wavelength of 0.10 nm? The mass of a neutron is 1.67 × 10-²⁷ kg.

Accepted Answer

A) 6.6 × 10-¹⁹ J 
B) 1.3 × 10-²⁰ J 
C) 2.6 × 10-²⁰ J 
D) 6.3 × 10-²⁰ J 
E) 7.1 × 10-²⁰ J 
A) 6.6 × 10-¹⁹ J 
B) 1.3 × 10-²⁰ J 
C) 2.6 × 10-²⁰ J 
D) 6.3 × 10-²⁰ J 
E) 7.1 × 10-²⁰ J

Question 5

The position of a 1-g object moving in the x direction at 1 cm/s is known to within ± 10 nm.In which range is the fractional uncertainty,  ,in the x component of its momentum?

Accepted Answer

A) 10-² to 10-⁴ 
B) 10-¹² to 10-¹⁴ 
C) 10-¹⁶ to 10-¹⁸ 
D) 10-²⁰ to 10-²² 
E) less than 10-³⁰ 
A) 10-² to 10-⁴ 
B) 10-¹² to 10-¹⁴ 
C) 10-¹⁶ to 10-¹⁸ 
D) 10-²⁰ to 10-²² 
E) less than 10-³⁰

Question 6

A laser produces 3.0 W of light that has a wavelength of 600 nm.How many photons per second are produced?

Accepted Answer

A) 7.3 × 10¹⁵ 
B) 4.2 × 10¹⁷ 
C) 1.0 × 10¹⁷ 
D) 3.0 × 10¹⁸ 
E) 9.1 × 10¹⁸ 
A) 7.3 × 10¹⁵ 
B) 4.2 × 10¹⁷ 
C) 1.0 × 10¹⁷ 
D) 3.0 × 10¹⁸ 
E) 9.1 × 10¹⁸

Question 7

Upon which one of the following parameters does the energy of a photon depend?

Accepted Answer

A) mass 
B) amplitude 
C) polarization 
D) frequency 
E) phase relationships 
A) mass 
B) amplitude 
C) polarization 
D) frequency 
E) phase relationships

Question 8

A physicist wishes to produce electrons by shining light on a metal surface.The light source emits light with a wavelength of 450 nm.The table lists the only available metals and their work functions.
  
-Which entry in the table below correctly identifies the metal that will produce the most energetic electrons and their energies?

Accepted Answer

The answer of A physicist wishes to produce electrons by...

Question 9

Complete the following statement: The photon description of light is necessary to explain

Accepted Answer

A) polarization 
B) photoelectric effect 
C) diffraction of light 
D) electron diffraction 
E) interference of light 
A) polarization 
B) photoelectric effect 
C) diffraction of light 
D) electron diffraction 
E) interference of light

Question 10

A photon has a collision with a stationary electron (h/mc = 2.43 × 10-¹² m)and loses 5.0% of its energy.The photon scattering angle is 180°.What is the wavelength of the incident photon in this scattering process?

Accepted Answer

A) 2.4 × 10-¹² m 
B) 4.6 × 10-¹¹ m 
C) 9.2 × 10-¹¹ m 
D) 1.9 × 10-¹⁰ m 
E) 3.1 × 10-¹² m 
A) 2.4 × 10-¹² m 
B) 4.6 × 10-¹¹ m 
C) 9.2 × 10-¹¹ m 
D) 1.9 × 10-¹⁰ m 
E) 3.1 × 10-¹² m

Question 11

A proton (mp = 1.673 × 10-²⁷ kg)and an electron (mₑ = 9.109 × 10-³¹ kg)are confined such that the x position of each is known to within 1.50 × 10-¹⁰ m.What is the ratio of the minimum uncertainty in the x component of the velocity of the electron to that of the proton, ?

Accepted Answer

A) 5.444 × 10-⁴ 
B) 0.2272 
C) 808.2 
D) 1837 
E) 36 290 
A) 5.444 × 10-⁴ 
B) 0.2272 
C) 808.2 
D) 1837 
E) 36 290

Question 12

Which experimental evidence confirms the hypothesis that matter exhibits wave properties?

Accepted Answer

A) photoelectric experiments 
B) electron diffraction experiments 
C) Young's double-slit experiments 
D) Compton scattering experiments 
E) Michelson-Morley experiment 
A) photoelectric experiments 
B) electron diffraction experiments 
C) Young's double-slit experiments 
D) Compton scattering experiments 
E) Michelson-Morley experiment

Question 13

When ultraviolet photons with a wavelength of 3.45 × 10-⁷ m are directed at the surface of an unknown metal in vacuum,electrons with a maximum kinetic energy of 1.52 eV are emitted from the surface.What is the work function of the metal?

Accepted Answer

A) 3.60 eV 
B) 3.11 eV 
C) 2.59 eV 
D) 2.08 eV 
E) 1.98 eV 
A) 3.60 eV 
B) 3.11 eV 
C) 2.59 eV 
D) 2.08 eV 
E) 1.98 eV

Question 14

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10-³¹ kg;and the neutron mass is 1.67 × 10-²⁷ kg.

Accepted Answer

A) 1830 eV 
B) 42.8 eV 
C) 3.35 × 10⁶ eV 
D) 5.46 × 10-⁴ eV 
E) 2.34 × 10-² eV 
A) 1830 eV 
B) 42.8 eV 
C) 3.35 × 10⁶ eV 
D) 5.46 × 10-⁴ eV 
E) 2.34 × 10-² eV

Which one of the following is demonstrated by the Compton effect?

Which one of the following quantities is the same for all photons in vacuum?

The graph shows the variation in radiation intensity per unit wavelength versus wavelength for a perfect blackbody at temperature T. Complete the following statement: As the blackbody temperature is increased,the peak in intensity of this curve

What kinetic energy must each neutron in a beam of neutrons have if each has a wavelength of 0.10 nm? The mass of a neutron is 1.67 × 10^-²⁷ kg.

A laser produces 3.0 W of light that has a wavelength of 600 nm.How many photons per second are produced?

Upon which one of the following parameters does the energy of a photon depend?

Complete the following statement: The photon description of light is necessary to explain

A photon has a collision with a stationary electron (h/mc = 2.43 × 10^-¹² m)and loses 5.0% of its energy.The photon scattering angle is 180°.What is the wavelength of the incident photon in this scattering process?

A proton (mp = 1.673 × 10^-²⁷ kg)and an electron (mₑ = 9.109 × 10^-³¹ kg)are confined such that the x position of each is known to within 1.50 × 10^-¹⁰ m.What is the ratio of the minimum uncertainty in the x component of the velocity of the electron to that of the proton,?

Which experimental evidence confirms the hypothesis that matter exhibits wave properties?

When ultraviolet photons with a wavelength of 3.45 × 10^-⁷ m are directed at the surface of an unknown metal in vacuum,electrons with a maximum kinetic energy of 1.52 eV are emitted from the surface.What is the work function of the metal?

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10^-³¹ kg;and the neutron mass is 1.67 × 10^-²⁷ kg.

Fluids

The Transfer of Heat

The Ideal Gas Law and Kinetic Theory

Thermodynamics

The Principle of Linear Superposition and Interference Phenomena

Electric Circuits

Electromagnetic Induction

The Refl Ection of Light: Mirrors

The Refraction of Light: Lenses and Optical Instruments

Filters

Exam 29: Particles and Waves

Which one of the following is demonstrated by the Compton effect?

Which one of the following quantities is the same for all photons in vacuum?

The graph shows the variation in radiation intensity per unit wavelength versus wavelength for a perfect blackbody at temperature T. Complete the following statement: As the blackbody temperature is increased,the peak in intensity of this curve

What kinetic energy must each neutron in a beam of neutrons have if each has a wavelength of 0.10 nm? The mass of a neutron is 1.67 × 10-²⁷ kg.

The position of a 1-g object moving in the x direction at 1 cm/s is known to within ± 10 nm.In which range is the fractional uncertainty, ,in the x component of its momentum?

A laser produces 3.0 W of light that has a wavelength of 600 nm.How many photons per second are produced?

Upon which one of the following parameters does the energy of a photon depend?

Complete the following statement: The photon description of light is necessary to explain

A photon has a collision with a stationary electron (h/mc = 2.43 × 10-¹² m)and loses 5.0% of its energy.The photon scattering angle is 180°.What is the wavelength of the incident photon in this scattering process?

A proton (mp = 1.673 × 10-²⁷ kg)and an electron (mₑ = 9.109 × 10-³¹ kg)are confined such that the x position of each is known to within 1.50 × 10-¹⁰ m.What is the ratio of the minimum uncertainty in the x component of the velocity of the electron to that of the proton,?

Which experimental evidence confirms the hypothesis that matter exhibits wave properties?

When ultraviolet photons with a wavelength of 3.45 × 10-⁷ m are directed at the surface of an unknown metal in vacuum,electrons with a maximum kinetic energy of 1.52 eV are emitted from the surface.What is the work function of the metal?

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10-³¹ kg;and the neutron mass is 1.67 × 10-²⁷ kg.

Fluids

The Transfer of Heat

The Ideal Gas Law and Kinetic Theory

Thermodynamics

The Principle of Linear Superposition and Interference Phenomena

Electric Circuits

Electromagnetic Induction

The Refl Ection of Light: Mirrors

The Refraction of Light: Lenses and Optical Instruments

Filters

What kinetic energy must each neutron in a beam of neutrons have if each has a wavelength of 0.10 nm? The mass of a neutron is 1.67 × 10^-²⁷ kg.

A photon has a collision with a stationary electron (h/mc = 2.43 × 10^-¹² m)and loses 5.0% of its energy.The photon scattering angle is 180°.What is the wavelength of the incident photon in this scattering process?

A proton (mp = 1.673 × 10^-²⁷ kg)and an electron (mₑ = 9.109 × 10^-³¹ kg)are confined such that the x position of each is known to within 1.50 × 10^-¹⁰ m.What is the ratio of the minimum uncertainty in the x component of the velocity of the electron to that of the proton,?

When ultraviolet photons with a wavelength of 3.45 × 10^-⁷ m are directed at the surface of an unknown metal in vacuum,electrons with a maximum kinetic energy of 1.52 eV are emitted from the surface.What is the work function of the metal?

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10^-³¹ kg;and the neutron mass is 1.67 × 10^-²⁷ kg.