The best answer is c, but a is also true if the wavelength of the light is chosen correctly. The intensity of the light does not determine the emission of the electrons, the wavelength (energy of light photons) is what determines.
To determine the best answer in this scenario, we need to consider the factors that determine the emission of electrons. In this case, the correct answer is based on the wavelength of the light.
To understand this concept better, let's break it down step by step:
1. Determine the factors: The emission of electrons is determined by two factors - intensity and wavelength of light.
2. Intensity of light: The intensity of light refers to the amount of energy per unit area. It is commonly measured in units like watts per square meter. However, in this scenario, the statement already mentions that intensity does not determine the emission of electrons, so we can exclude it as a determining factor.
3. Wavelength of light: The wavelength of light refers to the distance between two corresponding points on a wave, such as two crests or two troughs. It is usually measured in units like meters or nanometers. The energy of light photons is directly related to the wavelength of light. The shorter the wavelength, the higher the energy of the photons.
4. Understanding the correct answer choices: The given statement suggests that option C is the best answer. However, it also mentions that option A can be true if the wavelength of light is chosen correctly.
5. Final analysis: From the explanation given, it is clear that the wavelength of light is the determining factor for the emission of electrons. Thus, option C is the best answer since it emphasizes the importance of wavelength in determining electron emission. However, option A can also be true if the correct wavelength of light is chosen.
In conclusion, the best answer in this scenario is indeed option C, but option A can also be true based on the wavelength of the light chosen.