The de Broglie wavelength of a 0.069 kg golf ball is 4.67 × 10−34m.What is its speed? (h = 6.63 × 10−34 J⋅s)

A) 10 m/s B) 21 m/s C) 3.1 m/s D) 90 m/s E) 4.5 m/s A) 10 m/s B) 21 m/s C) 3.1 m/s D) 90 m/s E) 4.5 m/s

Light of wavelength 6.9 × 10−7 m has an energy of: (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s)

A) 2.9E-19 J B) 9.6E-20 J C) 3.1E-19 J D) 4.3E-20 J E) 3.2E-20 J A) 2.9E-19 J B) 9.6E-20 J C) 3.1E-19 J D) 4.3E-20 J E) 3.2E-20 J

How much energy (in eV)does a photon of orange light (λ = 609 nm)have? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

A) 3.27 eV B) 0.31 eV C) 2.04 eV D) 0.68 eV E) 5.23 eV A) 3.27 eV B) 0.31 eV C) 2.04 eV D) 0.68 eV E) 5.23 eV

In an x-ray diffraction experiment,using x-rays of wavelength λ = 0.434 × 10−10 m,a first-order maximum occurred at 8° off the crystal plane.Find the distance d between crystal planes.

A) 1.56E-10 m B) 2.19E-11 m C) 4.88E-10 m D) 1.70E-9 m E) 3.12E-10 m A) 1.56E-10 m B) 2.19E-11 m C) 4.88E-10 m D) 1.70E-9 m E) 3.12E-10 m

Exam 27: Quantum Physics Blackbody Radiation and Plancks Hypothesis

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An ultraviolet light beam having a wavelength of 217 nm is incident on a molybdenum surface with work function of 4.9 eV.What is the stopping potential? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.6 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

(Multiple Choice)

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Question 21

According to Einstein,as the wavelength of the incident monochromatic light beam becomes shorter,the work function of a target material in a phototube:

(Multiple Choice)

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Question 22

Blue light will not eject electrons from a certain metal;however,which one of the following may possibly eject electrons from that metal?

(Multiple Choice)

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Question 23

What is the frequency of monochromatic light where the photon energy is 4.3 × 10−¹⁹ J? (h = 6.63 × 10−³⁴ J⋅s)

(Multiple Choice)

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Question 24

The de Broglie wavelength of a 0.069 kg golf ball is 4.67 × 10−³⁴m.What is its speed? (h = 6.63 × 10−³⁴ J⋅s)

(Multiple Choice)

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Question 25

Light of wavelength 439 nm is incident on a metallic surface with a resultant photoelectric stopping potential of 1.2 V.What is the work function of the metal? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

(Multiple Choice)

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Question 26

Rosalind Franklin was:

(Multiple Choice)

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Question 27

Light of wavelength 6.9 × 10−⁷ m has an energy of: (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s)

(Multiple Choice)

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Question 28

A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 1.85 mW.How many photons are emitted each second? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,and 1 nm = 10−⁹ m)

(Multiple Choice)

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Question 29

How much energy (in eV)does a photon of orange light (λ = 609 nm)have? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

(Multiple Choice)

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Question 30

The Compton experiment demonstrated which of the following when an x-ray photon collides with an electron?

(Multiple Choice)

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Question 31

Due to the dual nature of light and matter,either can act in an experiment as if it is a wave or a particle.In which experiment is the wave aspect exhibited for matter?

(Multiple Choice)

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Question 32

Who was the first to successfully explain the photoelectric effect?

(Multiple Choice)

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Question 33

In an x-ray diffraction experiment,using x-rays of wavelength λ = 0.434 × 10−¹⁰ m,a first-order maximum occurred at 8° off the crystal plane.Find the distance d between crystal planes.

(Multiple Choice)

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Question 34

The Compton wavelength,h/m_ec,equals 0.002 43 nm.In Compton scattering,what is the greatest shift,Δλ,in wavelength that can occur?

(Multiple Choice)

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Question 35

In Bragg's law,2d sin θ = mλ,how is θ measured?

(Multiple Choice)

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Question 36

Changing the accelerating voltage of an x-ray machine without changing the target material must change:

(Multiple Choice)

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Question 37

Of photons of red,yellow,light,and blue light,which photons have the greatest energy?

(Multiple Choice)

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Question 38

A quantum of radiation has an energy of 1.5 keV.What is its frequency? (h = 6.63 × 10−³⁴ J⋅s and 1 eV = 1.60 × 10−¹⁹ J)

(Multiple Choice)

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Question 39

Light of wavelength 521 nm is incident on a target metal that has a work function of 1.6 eV.What stopping potential is required for this combination in a phototube? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

(Multiple Choice)

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Question 40

Showing 21 - 40 of 79

Exam 27: Quantum Physics Blackbody Radiation and Plancks Hypothesis

An ultraviolet light beam having a wavelength of 217 nm is incident on a molybdenum surface with work function of 4.9 eV.What is the stopping potential? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.6 × 10−19 J,and 1 nm = 10−9 m)

According to Einstein,as the wavelength of the incident monochromatic light beam becomes shorter,the work function of a target material in a phototube:

Blue light will not eject electrons from a certain metal;however,which one of the following may possibly eject electrons from that metal?

What is the frequency of monochromatic light where the photon energy is 4.3 × 10−19 J? (h = 6.63 × 10−34 J⋅s)

The de Broglie wavelength of a 0.069 kg golf ball is 4.67 × 10−34m.What is its speed? (h = 6.63 × 10−34 J⋅s)

Light of wavelength 439 nm is incident on a metallic surface with a resultant photoelectric stopping potential of 1.2 V.What is the work function of the metal? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

Rosalind Franklin was:

Light of wavelength 6.9 × 10−7 m has an energy of: (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s)

A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 1.85 mW.How many photons are emitted each second? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,and 1 nm = 10−9 m)

How much energy (in eV)does a photon of orange light (λ = 609 nm)have? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

The Compton experiment demonstrated which of the following when an x-ray photon collides with an electron?

Due to the dual nature of light and matter,either can act in an experiment as if it is a wave or a particle.In which experiment is the wave aspect exhibited for matter?

Who was the first to successfully explain the photoelectric effect?

In an x-ray diffraction experiment,using x-rays of wavelength λ = 0.434 × 10−10 m,a first-order maximum occurred at 8° off the crystal plane.Find the distance d between crystal planes.

The Compton wavelength,h/mec,equals 0.002 43 nm.In Compton scattering,what is the greatest shift,Δλ,in wavelength that can occur?

In Bragg's law,2d sin θ = mλ,how is θ measured?

Changing the accelerating voltage of an x-ray machine without changing the target material must change:

Of photons of red,yellow,light,and blue light,which photons have the greatest energy?

A quantum of radiation has an energy of 1.5 keV.What is its frequency? (h = 6.63 × 10−34 J⋅s and 1 eV = 1.60 × 10−19 J)

Light of wavelength 521 nm is incident on a target metal that has a work function of 1.6 eV.What stopping potential is required for this combination in a phototube? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

An ultraviolet light beam having a wavelength of 217 nm is incident on a molybdenum surface with work function of 4.9 eV.What is the stopping potential? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.6 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

What is the frequency of monochromatic light where the photon energy is 4.3 × 10−¹⁹ J? (h = 6.63 × 10−³⁴ J⋅s)

The de Broglie wavelength of a 0.069 kg golf ball is 4.67 × 10−³⁴m.What is its speed? (h = 6.63 × 10−³⁴ J⋅s)

Light of wavelength 439 nm is incident on a metallic surface with a resultant photoelectric stopping potential of 1.2 V.What is the work function of the metal? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

Light of wavelength 6.9 × 10−⁷ m has an energy of: (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s)

A helium-neon laser emits red light having a wavelength of 632.8 nm and a power of 1.85 mW.How many photons are emitted each second? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,and 1 nm = 10−⁹ m)

How much energy (in eV)does a photon of orange light (λ = 609 nm)have? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

In an x-ray diffraction experiment,using x-rays of wavelength λ = 0.434 × 10−¹⁰ m,a first-order maximum occurred at 8° off the crystal plane.Find the distance d between crystal planes.

The Compton wavelength,h/m_ec,equals 0.002 43 nm.In Compton scattering,what is the greatest shift,Δλ,in wavelength that can occur?

A quantum of radiation has an energy of 1.5 keV.What is its frequency? (h = 6.63 × 10−³⁴ J⋅s and 1 eV = 1.60 × 10−¹⁹ J)

Light of wavelength 521 nm is incident on a target metal that has a work function of 1.6 eV.What stopping potential is required for this combination in a phototube? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)