A Photocell Is a Device That Operates Using the Photoelectric $\phi$

question 57

Multiple Choice

A photocell is a device that operates using the photoelectric effect.What metal should be used if it is desired that the photocell operate using visible light?

• A) manganese (\(\phi\) = 4.1 eV)
• B) gadolinium (\(\phi\) = 2.90 eV)
• C) cesium (\(\phi\) = 2.14 eV)
• D) beryllium (\(\phi\) = 4.98 eV)

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Definitions:

Center Line

In statistical process control, the center line represents the mean value in a control chart, serving as a benchmark for detecting variations in the process.

P Chart

A type of control chart used for monitoring the proportion of defective items in a sample over time in quality control processes.

Sample Proportion

The fraction or percentage of the sample that has a particular trait or characteristic of interest.

Control Limits

Statistical boundaries in process control that indicate the acceptable range of process variation.