A Photocathode Whose Work Function Is 2

question 8

Multiple Choice

A photocathode whose work function is 2.9 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm.The range of the wavelength band in this white light illumination for which photoelectrons are not produced,in nm,is closest to:

• A)430 to 700
• B)400 to 480
• C)430 to 480
• D)400 to 430
• E)480 to 700

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Definitions:

Current Liabilities

Obligations of a company due within one year, including accounts payable, short-term loans, and other similar debts.

Percentage Of Sales Method

An accounting technique used to forecast the future financial positions based on a set percentage of sales.

External Funds

Capital that comes from outside of a company, including debt financing and equity financing from external investors.

Sales Increase

The rise in the volume or value of sales of goods or services over a specified period compared to a previous period.