Light with a Frequency of 8

question 28

Multiple Choice

Light with a frequency of 8.70 × 10¹⁴ Hz is incident on a metal that has a work function of 2.8 eV. What is the maximum kinetic energy that a photoelectron ejected in this process can have?

• A)8.71 × 10^-19 J
• B)3.11 × 10^-19 J
• C)1.28 × 10^-19 J
• D)2.41 × 10^-19 J
• E)4.52 × 10^-19 J

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Definitions:

Four Levels Of Evaluation

Refers to a framework developed by Donald Kirkpatrick for assessing training programs, which includes reactions, learning, behavior, and results.

Pre-Post Design

A research method that involves measuring certain variables before and after an intervention to assess the changes that occur as a result of the intervention.

Control Group

In experimental research, a group of subjects that does not receive the treatment being tested, used as a benchmark to measure the effect of the treatment.

Data Collection Method

Techniques or procedures used to gather information or data for analysis in research, studies, or evaluations.