From the photoelectric effect, when a light is incident on a surface of a material, the material emits or ejects the electrons.
The energy of the incident light is then absorbed by the electrons, which are within the material to give sufficient energy to the electron to be ejected from the surface of the material.
Please explain how you get the answer
Increasing the brightness of a beam of light without changing its color will increase
A) the number of photons per second traveling in the beam.
B) the energy of each photon.
C) the speed of the photons.
D) the frequency of the light.
E) the wavelength of the photons.
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What scientific concept do you need to know in order to solve this problem?
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