A Surface Has a Work Function 1

question 27

Multiple Choice

A surface has a work function 1.70 eV and has light of wavelength 400 nm shone on it. What is the maximum speed of the photoelectrons emitted?

• A)1.0 × 10⁶ m/s
• B)1.3 × 10⁶ m/s
• C)7.0 × 10⁵ m/s
• D)7.7 × 10⁵ m/s
• E)3.5 × 10⁶ m/s

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Definitions:

Natural Liberty

The concept of being free to pursue one's own life and goals, without interference from others or the state, as long as one does not harm others.

Moral Liberty

Describes the freedom to act in accordance with one's ethical beliefs and principles without external constraint.

Male Authority

The dominance or control traditionally held by men in various social, political, and familial contexts.

Puritans

A group of English Reformed Protestants in the 16th and 17th centuries who sought to "purify" the Church of England from its "Catholic" practices.