
9th grade photoelectric effect
Authored by Yerzhan Zhumadilov
Physics
9th - 11th Grade
NGSS covered
Used 42+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Photons of energy 2.1 eV cause a photoelectric currenton the surface of caesium, which has a workfunction of 1.9 eV. How many times should the energyof the photon be increased in order to double themaximum kinetic energy of the photoelectrons?
Tags
NGSS.HS-PS4-3
NGSS.HS-PS3-1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What must the minimum energy of photons falling ona copper plate be in order to observe the photoelectriceffect? (work function for copper 4.7 eV)
Tags
NGSS.HS-PS4-3
3.
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)
Tags
NGSS.HS-PS4-3
NGSS.HS-PS4-1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Does high-frequency or low frequency light cause the ejection of a greater number of electrons from a metal surface?
Tags
NGSS.HS-PS4-4
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Does high-frequency or low frequency light cause the ejection of a greater number of electrons from a metal surface?
Tags
NGSS.HS-PS4-4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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?
Tags
NGSS.HS-PS4-3
NGSS.HS-PS4-1
NGSS.HS-PS4-4
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The photoelectric effect is observed on barium oxide(BaO) at a minimum frequency of 0.24x1015 Hz . Find the work function of bariumoxide in eV.
Tags
NGSS.HS-PS4-3
NGSS.HS-PS4-1
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