The red line in the hydrogen emission spectrum is 656 nm. If the energy of the nth level is -13.6/n 2 eV, then calculate the transition between n levels that this emitted photon comes from.

A) n = 2 to n = 3 B) n = 4 to n = 3 C) n = 5 to n = 2 D) n = 3 to n = 2 E) n = 2 to n = 4 A) n = 2 to n = 3 B) n = 4 to n = 3 C) n = 5 to n = 2 D) n = 3 to n = 2 E) n = 2 to n = 4

In a photoelectric experiment, the threshold frequency for a material is 3.2 × 1014 Hz. An electron ejected from this surface by a photon of frequency 9.4 × 1014 Hz can be stopped by a stopping potential of

A) 8.5 mV. B) 1.6 V. C) 0.26 nV. D) 2.6 V. E) 3.6 kV. A) 8.5 mV. B) 1.6 V. C) 0.26 nV. D) 2.6 V. E) 3.6 kV.

Exam 26: Quantum Physics and Atomic Structure

The graph shows the kinetic energy of photoelectrons ejected from a certain metal as a function of the frequency of the light incident upon the metal. The work function of this metal is

(Multiple Choice)

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Question 141

The energy of an x-ray photon of wavelength 3.0 × 10^-10 m is

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Question 142

The set of quantum numbers for the probability density shown is

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Question 143

Light falling on the surface of a metal such as cesium can liberate electrons from the metal. The kinetic energy of electrons emitted from a metal can be increased by

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Question 144

The radii of the Bohr orbits in atomic hydrogen are given by .If the radius of the first Bohr orbit n = 1) is 0.053 nm, the radius of the third Bohr orbit n = 3) is

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Question 145

The red line in the hydrogen emission spectrum is 656 nm. If the energy of the nth level is -13.6/n ² eV, then calculate the transition between n levels that this emitted photon comes from.

(Multiple Choice)

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Question 146

For an electron to have a de Broglie wavelength of 0.10 nm it must be accelerated from rest through a potential difference of

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Question 147

The radius of the n = 1 Bohr orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 5 Bohr orbit?

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Question 148

The energy of an electron in the n = 5 state in a hydrogen atom is approximately

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Question 149

Calculate the photon energy for light of wavelength λ = 500 nm.Planck's constant h = 6.626 × 10^-34 J·s.)

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Question 150

In the Bohr model of the hydrogen atom, what is the kinetic energy of the electron in the n = 3 orbit? The radius of the first Bohr orbit is 0.0529 nm.)

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Question 151

Bohr's quantum condition on electron orbits required

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Question 152

When a certain x ray is Compton scattered at right angles to its initial direction, the shift in its wavelength is λ _c = 2.4 pm 1 picometer = 10^-12 m). If the wavelength of this ray is 15.4 pm, the wavelength of the scattered x ray must be closest to

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Question 153

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 1 state is approximately

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Question 154

Potassium has a work function of 2.3 eV for photoelectric emission. Which of the following wavelengths is the longest wavelength for which photoemission occurs?

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Question 155

According to the Bohr theory, the allowed energy states for the hydrogen atom are given by the relation .This formula can be readily extended to other hydrogenic one-electron) systems. The energy of the second level n = 2) for the doubly ionized lithium atom is

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Question 156

In a photoelectric experiment, the threshold frequency for a material is 3.2 × 10¹⁴Hz. An electron ejected from this surface by a photon of frequency 9.4 × 10¹⁴ Hz can be stopped by a stopping potential of

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Question 157

In Young's experiment,

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Question 158

The wavelength of blue light is closest to

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Question 159

Which of the following experiments) illustrates the particle nature of light?

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Question 160

Showing 141 - 160 of 167

Exam 26: Quantum Physics and Atomic Structure

The graph shows the kinetic energy of photoelectrons ejected from a certain metal as a function of the frequency of the light incident upon the metal. The work function of this metal is

The energy of an x-ray photon of wavelength 3.0 × 10-10 m is

The set of quantum numbers for the probability density shown is

Light falling on the surface of a metal such as cesium can liberate electrons from the metal. The kinetic energy of electrons emitted from a metal can be increased by

The radii of the Bohr orbits in atomic hydrogen are given by .If the radius of the first Bohr orbit n = 1) is 0.053 nm, the radius of the third Bohr orbit n = 3) is

The red line in the hydrogen emission spectrum is 656 nm. If the energy of the nth level is -13.6/n 2 eV, then calculate the transition between n levels that this emitted photon comes from.

For an electron to have a de Broglie wavelength of 0.10 nm it must be accelerated from rest through a potential difference of

The radius of the n = 1 Bohr orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 5 Bohr orbit?

The energy of an electron in the n = 5 state in a hydrogen atom is approximately

Calculate the photon energy for light of wavelength λ = 500 nm.Planck's constant h = 6.626 × 10-34 J·s.)

In the Bohr model of the hydrogen atom, what is the kinetic energy of the electron in the n = 3 orbit? The radius of the first Bohr orbit is 0.0529 nm.)

Bohr's quantum condition on electron orbits required

When a certain x ray is Compton scattered at right angles to its initial direction, the shift in its wavelength is λ c = 2.4 pm 1 picometer = 10-12 m). If the wavelength of this ray is 15.4 pm, the wavelength of the scattered x ray must be closest to

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 1 state is approximately

Potassium has a work function of 2.3 eV for photoelectric emission. Which of the following wavelengths is the longest wavelength for which photoemission occurs?

According to the Bohr theory, the allowed energy states for the hydrogen atom are given by the relation .This formula can be readily extended to other hydrogenic one-electron) systems. The energy of the second level n = 2) for the doubly ionized lithium atom is

In a photoelectric experiment, the threshold frequency for a material is 3.2 × 1014 Hz. An electron ejected from this surface by a photon of frequency 9.4 × 1014 Hz can be stopped by a stopping potential of

In Young's experiment,

The wavelength of blue light is closest to

Which of the following experiments) illustrates the particle nature of light?

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The energy of an x-ray photon of wavelength 3.0 × 10^-10 m is

The red line in the hydrogen emission spectrum is 656 nm. If the energy of the nth level is -13.6/n ² eV, then calculate the transition between n levels that this emitted photon comes from.

Calculate the photon energy for light of wavelength λ = 500 nm.Planck's constant h = 6.626 × 10^-34 J·s.)

When a certain x ray is Compton scattered at right angles to its initial direction, the shift in its wavelength is λ _c = 2.4 pm 1 picometer = 10^-12 m). If the wavelength of this ray is 15.4 pm, the wavelength of the scattered x ray must be closest to

In a photoelectric experiment, the threshold frequency for a material is 3.2 × 10¹⁴Hz. An electron ejected from this surface by a photon of frequency 9.4 × 10¹⁴ Hz can be stopped by a stopping potential of