CHAPTER 8_ PHOTOELECTRIC EFFECT
Authored by OSWADI BM
Physics
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During Einstein’s Photoelectric Experiment, what changes are observed when the frequency of the incident radiation is increased?
The value of saturation current increases
No effect
The value of stopping potential increases
The value of stopping potential decreases
Tags
NGSS.HS-PS4-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the intensity affect the photoelectric current?
As intensity increases, the photoelectric effect increases
As the intensity increases, the photoelectric effect decreases
As the intensity decreases, the photoelectric effect becomes twice
No effect
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The photoelectric emission could be explained by the ____________
Wave nature of light
Particle nature of light
Dual nature of light
Quantum nature
Tags
NGSS.HS-PS4-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of intensity on the stopping potential?
As intensity increases, stopping potential increases linearly
As intensity increases, stopping potential decreases linearly
As intensity decreases, stopping potential increases exponentially
No effect
5.
MULTIPLE CHOICE QUESTION
30 sec • 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-PS4-4
NGSS.HS-PS4-3
NGSS.HS-PS4-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 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-PS4-4
NGSS.HS-PS4-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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.
Tags
NGSS.HS-PS4-4
NGSS.HS-PS4-3
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