What is the effect of increasing the frequency of incident light on the photoele
Practice Questions
Q1
What is the effect of increasing the frequency of incident light on the photoelectric current?
Increases indefinitely
Decreases
Remains constant
Increases until a threshold frequency is reached
Questions & Step-by-Step Solutions
What is the effect of increasing the frequency of incident light on the photoelectric current?
Step 1: Understand that incident light can have different frequencies (colors).
Step 2: Know that the photoelectric effect involves light hitting a material and causing it to emit electrons.
Step 3: Recognize that there is a minimum frequency called the threshold frequency needed to release electrons.
Step 4: Realize that as the frequency of the light increases and is above the threshold frequency, more electrons can be emitted.
Step 5: Understand that the photoelectric current (the flow of emitted electrons) increases with frequency until it reaches the threshold frequency.
Step 6: After reaching the threshold frequency, increasing the frequency further does not increase the current; instead, the current depends on the intensity (brightness) of the light.
