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:

Self-efficacy

An individual's belief in their own ability to succeed in specific situations or accomplish a task, which can play a major role in how goals, tasks, and challenges are approached.

Social Cognitive Theory

A theory in psychology that states behavior is learned from the environment through the process of observational learning and social interaction.

Behavioral Perspectives

A viewpoint in psychology that emphasizes the importance of observing and understanding how behavior is influenced by the environment and internal mental states.

Moderately Consistent

Describes a level of regularity and predictability in behavior or phenomena that is neither high nor low but within a middle range.