Q. Which of the following statements is true regarding the photoelectric effect?
A.Electrons are emitted only if the light is of high intensity
B.Electrons are emitted regardless of the frequency of light
C.There is a threshold frequency below which no electrons are emitted
D.The photoelectric effect can occur with any type of electromagnetic radiation
Solution
The photoelectric effect requires a minimum threshold frequency; below this frequency, no electrons are emitted regardless of the intensity of the light.
Correct Answer: C — There is a threshold frequency below which no electrons are emitted
Q. Which phenomenon demonstrates the particle nature of light as evidenced by the photoelectric effect?
A.Interference
B.Diffraction
C.Photoelectric effect
D.Refraction
Solution
The photoelectric effect demonstrates the particle nature of light, as it shows that light can be thought of as consisting of particles (photons) that can impart energy to electrons.
Q. Which phenomenon demonstrates the particle nature of light as explained by the photoelectric effect?
A.Diffraction
B.Interference
C.Emission of electrons
D.Refraction
Solution
The photoelectric effect demonstrates the particle nature of light, as it shows that light can be thought of as consisting of particles (photons) that can impart energy to electrons.
Q. Which phenomenon demonstrates the particle nature of light in the context of the photoelectric effect?
A.Interference
B.Diffraction
C.Emission of electrons
D.Refraction
Solution
The emission of electrons in the photoelectric effect demonstrates the particle nature of light, as it involves the transfer of energy from photons to electrons.
