Which of the following statements is true regarding the photoelectric effect?
Practice Questions
Q1
Which of the following statements is true regarding the photoelectric effect?
Electrons are emitted only if the light is of high intensity
Electrons are emitted regardless of the frequency of light
There is a threshold frequency below which no electrons are emitted
The photoelectric effect can occur with any type of electromagnetic radiation
Questions & Step-by-Step Solutions
Which of the following statements is true regarding the photoelectric effect?
Correct Answer: The photoelectric effect requires a minimum threshold frequency.
Step 1: Understand what the photoelectric effect is. It is the phenomenon where electrons are emitted from a material when it is exposed to light.
Step 2: Learn about threshold frequency. This is the minimum frequency of light needed to emit electrons from the material.
Step 3: Recognize that if the frequency of the light is below this threshold, no electrons will be emitted, even if the light is very bright (high intensity).
Step 4: Conclude that the statement about the photoelectric effect requiring a minimum threshold frequency is true.
