Question

light of a certain energy shines on a metal and causes electrons to be emitted. based on the research of albert einstein, what change would most likely result in stopping the emission of electrons from this metal? an increase in the intensity of the light a decrease in the intensity of the light the use of light that has a higher frequency the use of light that has a lower frequency

Explanation:

According to the photoelectric effect (Einstein's work), electrons are emitted from a metal when light of sufficient frequency (above the threshold frequency) shines on it. The intensity of light affects the number of electrons emitted (more intense light gives more electrons if frequency is above threshold), not whether they are emitted. Higher - frequency light (if already above threshold) just gives more energetic electrons. But if the frequency of the light is lowered below the threshold frequency of the metal, electrons will no longer be emitted.

Answer:

the use of light that has a lower frequency