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What is the threshold frequency of the experimental photo-missive material?

What is the threshold frequency of the experimental photo-missive material?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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### Frequency Values in Scientific Notation Below are the values of frequencies listed in scientific notation. Each frequency is given in Hertz (Hz), representing cycles per second. - **a:** 9.0 × 10^14 Hz - **b:** 5.5 × 10^14 Hz - **c:** 2.9 × 10^14 Hz - **d:** 0.5 × 10^14 Hz Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. This format is often used in scientific and engineering contexts. #### Explanation of Scientific Notation: - The expression \(9.0 \, \text{E} \, 14\) can be read as \(9.0 \times 10^{14} \text{Hz}\). - Similarly, \(5.5 \, \text{E} \, 14\) is equivalent to \(5.5 \times 10^{14} \text{Hz}\), and so on for the other values. If you need further clarification on scientific notation or its applications in different fields, follow the links provided below for additional resources and examples.
Transcribed Image Text:### Frequency Values in Scientific Notation Below are the values of frequencies listed in scientific notation. Each frequency is given in Hertz (Hz), representing cycles per second. - **a:** 9.0 × 10^14 Hz - **b:** 5.5 × 10^14 Hz - **c:** 2.9 × 10^14 Hz - **d:** 0.5 × 10^14 Hz Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. This format is often used in scientific and engineering contexts. #### Explanation of Scientific Notation: - The expression \(9.0 \, \text{E} \, 14\) can be read as \(9.0 \times 10^{14} \text{Hz}\). - Similarly, \(5.5 \, \text{E} \, 14\) is equivalent to \(5.5 \times 10^{14} \text{Hz}\), and so on for the other values. If you need further clarification on scientific notation or its applications in different fields, follow the links provided below for additional resources and examples.
**Photoelectric Effect for a Photomissive Metal** Use the following photoelectric graph to answer the question: --- **Graph Explanation:** The graph titled "Photoelectric Effect for a Photomissive Metal" shows the relationship between the frequency of incident light (measured in \( \times 10^{14} \) Hz) and the kinetic energy (measured in electron volts, eV) of the emitted electrons from a photomissive metal. - **X-Axis (Horizontal):** Frequency (\(E14\) Hz), where the frequency scale ranges from -1 to 11. - **Y-Axis (Vertical):** Kinetic Energy (eV), where the kinetic energy scale ranges from -2 eV to 4 eV. - **Data Points:** A series of data points are plotted on the graph, and a trendline through these points indicates a linear relationship. The graph shows that as the frequency of the incident light increases, the kinetic energy of the emitted electrons also increases linearly. --- **Question:** What is the threshold frequency of the experimental photo-missive material? --- **Explanation:** The threshold frequency is the minimum frequency at which electrons begin to be emitted from the metal surface, which corresponds to the point where the kinetic energy of the electrons becomes zero. From the graph, this is where the trendline intersects the X-axis (Frequency axis). **Threshold frequency:** Approximately \(2 \times 10^{14}\) Hz
Transcribed Image Text:**Photoelectric Effect for a Photomissive Metal** Use the following photoelectric graph to answer the question: --- **Graph Explanation:** The graph titled "Photoelectric Effect for a Photomissive Metal" shows the relationship between the frequency of incident light (measured in \( \times 10^{14} \) Hz) and the kinetic energy (measured in electron volts, eV) of the emitted electrons from a photomissive metal. - **X-Axis (Horizontal):** Frequency (\(E14\) Hz), where the frequency scale ranges from -1 to 11. - **Y-Axis (Vertical):** Kinetic Energy (eV), where the kinetic energy scale ranges from -2 eV to 4 eV. - **Data Points:** A series of data points are plotted on the graph, and a trendline through these points indicates a linear relationship. The graph shows that as the frequency of the incident light increases, the kinetic energy of the emitted electrons also increases linearly. --- **Question:** What is the threshold frequency of the experimental photo-missive material? --- **Explanation:** The threshold frequency is the minimum frequency at which electrons begin to be emitted from the metal surface, which corresponds to the point where the kinetic energy of the electrons becomes zero. From the graph, this is where the trendline intersects the X-axis (Frequency axis). **Threshold frequency:** Approximately \(2 \times 10^{14}\) Hz
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