Two light sources are used in a photoelectric experiment to determine the work function of a particular metal surface. When green light from a mercury lamp (546.1 nm) is used, a stopping potential of 0.376 V reduces the photocurrent to zero. Based on this measurement, what is the work function of this metal?
Two light sources are used in a photoelectric experiment to determine the work function of a particular metal surface. When green light from a mercury lamp (546.1 nm) is used, a stopping potential of 0.376 V reduces the photocurrent to zero. Based on this measurement, what is the work function of this metal?
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Transcribed Image Text:**Photoelectric Experiment to Determine Work Function**
In this experiment, two light sources are utilized to measure the work function of a specific metal surface. Specifically, when green light from a mercury lamp (with a wavelength of 546.1 nm) is used, it is observed that a stopping potential of 0.376 V is required to reduce the photocurrent to zero. The task is to determine the work function of this metal based on these measurements.
**Key Data:**
- **Wavelength of green light from mercury lamp**: 546.1 nm
- **Stopping potential**: 0.376 V
**Question:**
- What is the work function of the metal based on the provided measurement?
To find the work function, utilize the photoelectric equation and the relationship between the stopping potential, incident light frequency, and work function.
This instructional content would benefit from diagrams of the experimental setup and corresponding energy level diagrams to provide visual clarity to learners. Additionally, embedding formulas and step-by-step calculations can help in understanding the process of determining the work function from the given data.
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