A Light Detector Based on the Photoelectric Effect Is Made

question 147

Short Answer

A light detector based on the photoelectric effect is made with cesium metal. Cesium metal has a work function of 3.40  10^19 J. What is the longest wavelength of light that one could expect to detect with this device?

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Definitions:

Bond Issue

A financing method for companies or governments to raise capital by issuing debt securities to investors, which are payable over a specified term.

Unlevered Firm

A company that operates without using borrowed money, relying solely on its own equity for financing.

After-Tax Net

The remaining income of a business or investment after all taxes have been deducted.

Unlevered Cost

Refers to the cost a company would incur without the benefit or cost of debt financing.