kumar is producing the photoelectric effect by using red light. he wants to increase the energy of emitted…

kumar is producing the photoelectric effect by using red light. he wants to increase the energy of emitted electrons. based on the research of albert einstein, what is the best way for him to do this?\nincrease the intensity of red light.\ndecrease the intensity of red light.\nuse a different colored light that has a higher frequency.\nuse a different colored light that has a lower frequency.

kumar is producing the photoelectric effect by using red light. he wants to increase the energy of emitted electrons. based on the research of albert einstein, what is the best way for him to do this?\nincrease the intensity of red light.\ndecrease the intensity of red light.\nuse a different colored light that has a higher frequency.\nuse a different colored light that has a lower frequency.

Answer

Brief Explanations:

According to Einstein's photoelectric - effect equation $E = h\nu-\varphi$, where $E$ is the energy of the emitted electron, $h$ is Planck's constant, $\nu$ is the frequency of the incident light, and $\varphi$ is the work function of the metal. The energy of the emitted electrons depends on the frequency of the incident light, not its intensity. Higher - frequency light has more energy per photon. Red light has a relatively low frequency. To increase the energy of emitted electrons, a light with a higher frequency should be used.

Answer:

C. Use a different colored light that has a higher frequency.