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Questions and Answers
What is the minimum frequency of light required to cause the photoelectric effect?
What is the minimum frequency of light required to cause the photoelectric effect?
- It depends on the metal used
- The frequency of light is irrelevant
- Any frequency of light can cause the effect
- The frequency of light must be above a certain threshold (correct)
Which of the following factors affects the kinetic energy of emitted electrons in the photoelectric effect?
Which of the following factors affects the kinetic energy of emitted electrons in the photoelectric effect?
- The frequency of the incident light (correct)
- The intensity of the incident light
- The angle of incidence of the light
- The color of the incident light
Which of the following is true about the photoelectric effect?
Which of the following is true about the photoelectric effect?
- It is the reflection of light from a metal surface
- It is the emission of electrons from a metal surface when light falls on it (correct)
- It is the absorption of light by a metal surface
- It is the scattering of light by a metal surface
