The diagram shows a circuit involving a photoelectric cell. When UV light is shone onto the metal cathode, electrons are emitted establishing a photocurrent. Which of the following changes could cause the photocurrent to stop?

Increasing the potential difference of the power supply.

Increasing the frequency of the UV light.

Increasing the intensity of the UV light.

Changing the metal surface to one with a smaller work function.

The photoelectric effect helps us to understand

diffraction pattern produced as light passes through a single slit.

Why do we see colors when we look at neon signs?

Electrons are jumping from an excited state to a normal state and giving off energy

Electrons are jumping from a normal state to an excited state and absorbing energy

Electrons are jumping from an excited state to a normal state and absorbing energy

Electrons are jumping from a normal state to an excited state and giving off energy

How is the Quantum Mechanical Model different from Bohr's planetary model?

The QMM shows the probability of the electron's location.

The planetary model shows the probability of the electron's location.

The QMM shows the exact location of the electron.

The QMM does not include a nucleus.

In his experiment, Rutherford concluded that atoms have a nucleus because

some of the particles were deflected back towards the alpha source.

most of the particles went straight through the foil.

some of the particles were deflected near the front of the screen.

not enough information is given.

AP 2 Modern Physics

Authored by Eric Howard

Physics

11th Grade - University

NGSS covered

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.
Which of the following changes occur?

Rate of electron emission: increase.
Energy of electrons: increase.

Rate of electron emission: decrease.
Energy of electrons: no change.

Rate of electron emission: decrease.
Energy of electrons: increase.

Rate of electron emission: increase.
Energy of electrons: no change.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The photoelectric effect only occurs if the light shining on the metal is:

coherent.

above a minimum intensity.

above a minimum frequency.

above a minimum wavelength.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
Plank's constant is determined by:

the x-intercept.

the y-intercept.

the gradient.

the area under the graph.

Tags

NGSS.HS-PS4-3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
The threshold frequency is determined by:

the x-intercept.

the y-intercept.

the gradient.

the area under the graph.

Tags

NGSS.HS-PS4-3

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement about the photoelectric effect is correct?

Electrons are emitted instantaneously.

Electrons are not emitted below a certain wavelength.

You can change the energy of the electrons by changing the intensity.

Electron energy is independent of frequency.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The photoelectric effect is when:

Electrons collide inside a metal to release photons.

One incident metal electron releases one photon.

One incident photon releases one electron from a metal.

Photons are absorbed in to metal ions releasing electrons.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the maximum kinetic energy of electrons emitted from cesium (Cs), when light of frequency10¹⁵ Hz falls upon the metal? (work function for Cs is 1.8 eV)

7.728x10^-19 J

4.83 eV

1.864x10^-19 J

2.34 eV

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-1

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AP 2 Modern Physics

Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.
Which of the following changes occur?

The photoelectric effect only occurs if the light shining on the metal is:

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
Plank's constant is determined by:

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
The threshold frequency is determined by:

Which statement about the photoelectric effect is correct?

The photoelectric effect is when:

What is the maximum kinetic energy of electrons emitted from cesium (Cs), when light of frequency10¹⁵ Hz falls upon the metal? (work function for Cs is 1.8 eV)

Does high-frequency or low frequency light cause the ejection of a greater number of electrons from a metal surface?

Do the photons of violet light or the photons of red light, falling on a metal surface with the same intensity,cause emission of more electrons?

The cut-off wavelength for the photoelectric effect of platinum is 220 nm. Find the work function of platinum in eV

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

AP 2 Modern Physics

Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.Which of the following changes occur?

The photoelectric effect only occurs if the light shining on the metal is:

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.Plank's constant is determined by:

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.The threshold frequency is determined by:

Which statement about the photoelectric effect is correct?

The photoelectric effect is when:

What is the maximum kinetic energy of electrons emitted from cesium (Cs), when light of frequency1015 Hz falls upon the metal? (work function for Cs is 1.8 eV)

Does high-frequency or low frequency light cause the ejection of a greater number of electrons from a metal surface?

Do the photons of violet light or the photons of red light, falling on a metal surface with the same intensity,cause emission of more electrons?

The cut-off wavelength for the photoelectric effect of platinum is 220 nm. Find the work function of platinum in eV

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

Light of a single wavelength is incident on a metal. Electrons are released. The intensity of the light is then increased.
Which of the following changes occur?

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
Plank's constant is determined by:

The graph shows maximum kinetic energy of emitted electrons against frequency of incident light for a number of different metals.
The threshold frequency is determined by:

What is the maximum kinetic energy of electrons emitted from cesium (Cs), when light of frequency10¹⁵ Hz falls upon the metal? (work function for Cs is 1.8 eV)