In the photoelectric effect, which of the following factors does NOT affect the photoelectric current?
Practice Questions
1 question
Q1
In the photoelectric effect, which of the following factors does NOT affect the photoelectric current?
Intensity of light
Frequency of light
Surface area of the metal
Type of metal
The frequency of light must be above a certain threshold to emit electrons, but once that is achieved, the photoelectric current depends on the intensity, not the frequency.
Questions & Step-by-step Solutions
1 item
Q
Q: In the photoelectric effect, which of the following factors does NOT affect the photoelectric current?
Solution: The frequency of light must be above a certain threshold to emit electrons, but once that is achieved, the photoelectric current depends on the intensity, not the frequency.
Steps: 6
Step 1: Understand the photoelectric effect. This is when light hits a material and causes it to emit electrons.
Step 2: Know that there are two important factors in the photoelectric effect: frequency of light and intensity of light.
Step 3: Realize that the frequency of light must be above a certain level (threshold frequency) to release electrons.
Step 4: Once the frequency is above this threshold, the photoelectric current (the flow of emitted electrons) does not depend on frequency anymore.
Step 5: Understand that the photoelectric current depends on the intensity of the light, which is related to how many photons are hitting the material.
Step 6: Conclude that the factor that does NOT affect the photoelectric current, once the threshold frequency is met, is the frequency of the light.
