Photons with an Energy of 7

question 12

Multiple Choice

Photons with an energy of 7.52 eV strike a material that has a work function of 4.22 eV.The maximum kinetic energy of the electron emitted from this material is

• A)7.5 eV
• B)12 eV
• C)3.3 eV
• D)0.98 eV
• E)No electrons are ejected by these photons.

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Definitions:

Selection Criteria

The specific guidelines or requirements used to determine which individuals or cases are included or excluded from a study or analysis.

Initial Groupings

The preliminary categorization or division of subjects, items, or variables based on specific criteria at the start of a study or analysis.

Selection-By-Threat Interaction Effect

A situation in research where the selection of participants and specific threats to validity interact, affecting the experimental results.

Internal Validity

The extent to which a study effectively demonstrates a causal relationship between variables, minimizing the impact of confounding variables.