According to Experiments Concerned with the Photoelectric Effect,which of the Following

question 71

Multiple Choice

According to experiments concerned with the photoelectric effect,which of the following will increase the kinetic energy of an electron ejected from a metal surface?
1) increasing the wavelength of the light striking the surface
2) increasing the frequency of the light striking the surface
3) increasing the number of photons of light striking the surface

• A) 1 only
• B) 2 only
• C) 3 only
• D) 1 and 3
• E) 1,2,and 3

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