In Order to Produce an Electron and a Positron,two Photons

question 30

Multiple Choice

In order to produce an electron and a positron,two photons must have a combined energy of:

• A)E > 2m_ec²
• B)E > m_ec²
• C)E > 1⁄2m_ec²
• D)E = m_ec²
• E)This cannot happen.

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Definitions:

Universal

A concept or condition that applies to all members of a given category or thing, without exceptions.

Linguistic-Relativity Hypothesis

A theory suggesting that the structure of a language affects its speaker's worldview or cognition.

Environmental-Interactionist

An approach emphasizing the interaction between genetic factors and the environment in determining behavior and traits.

Language-Interdependence

The concept that the development of a second language is influenced by the skills of a first language.