A Photocathode Whose Work Function Is 2

question 41

Multiple Choice

A photocathode whose work function is 2.5 eV is illuminated with white light that has a continuous wavelength band from 360 nm to 700 nm.The stopping potential for this white light illumination is closest to:

• A)0.94 V
• B)0.85 V
• C)1.0 V
• D)1.1 V
• E)1.2 V

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Definitions:

Diagnosis Code

Alphanumeric codes that healthcare providers use to classify and record diseases, symptoms, and medical conditions.

Tuberculosis

A potentially serious infectious disease that primarily affects the lungs and is caused by the bacterium Mycobacterium tuberculosis.

Positive

Affirmative in attitude or quality; indicative of the presence of a particular condition, substance, or feature.

Poliomyelitis

An infectious viral disease that affects the nervous system, potentially leading to paralysis.