A Nonrelativistic Electron Has a Kinetic Energy of 5

question 64

Multiple Choice

A nonrelativistic electron has a kinetic energy of 5.4 eV.What is the energy of a photon whose wavelength is the same as the de Broglie wavelength of the electron? (m_el = 9.11 × 10^-31 kg,
C = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19 J)

• A) 2.4 keV
• B) 2.2 keV
• C) 2.0 keV
• D) 2.5 keV
• E) 2.7 keV

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Definitions:

Hierarchy Of Needs

A theory proposed by Abraham Maslow suggesting that human needs are arranged in a hierarchical order, with basic physical needs at the bottom and self-actualization at the top.

Growth Needs

Higher level psychological needs for personal development, self-fulfillment, and realizing one's potential, often associated with Maslow's hierarchy of needs.

Need Hierarchy

A rephrased definition of Maslow's Hierarchy, emphasizing the organization of human needs into levels, with foundational necessities being addressed before higher, psychological, and self-fulfillment needs.

Lower Needs

In Maslow's hierarchy, these are the fundamental physiological and safety needs that are essential for survival, such as food, water, and shelter.