The Work Function of a Certain Material Is 4

question 64

Multiple Choice

The work function of a certain material is 4.9 eV.What is the photoelectric minimum (threshold) frequency for this material?

• A)1.18 * 10¹⁵ Hz
• B)2.23 * 10¹⁵ Hz
• C)9.01 * 10¹⁴ Hz
• D)3.48 * 10¹⁵ Hz
• E)2.56 * 10¹⁵ Hz

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Definitions:

Formal Operational

Refers to the stage of cognitive development in Piaget's theory where individuals develop the ability to think abstractly and reason logically.

Freud's Arguments

Refers to the theories and concepts developed by Sigmund Freud that suggest the human psyche is structured into three parts: the id, ego, and superego, emphasizing the role of unconscious processes in shaping behavior and personality.

Moral Thinking

The process of reasoning about what, morally, one ought to do, often involving considerations of rights, obligations, benefits to society, fairness, or virtue.

Empirical Research

A way of gaining knowledge by means of direct observation or experience, utilizing scientific methods.