A Medal in a Plastic Cube Whose Index of Refraction

question 4

Multiple Choice

A medal in a plastic cube whose index of refraction is 1.5 appears to be 20 mm below the upper surface of the cube. The depth of the medal is actually

• A) 10 mm.
• B) 13 mm.
• C) 20 mm.
• D) 30 mm.

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Definitions:

Experimental Group

The group in a scientific study that receives the treatment or intervention being tested, compared against a control group.

Trolled

The act of deliberately provoking or antagonizing others online, often by posting inflammatory or off-topic messages in a community space.

Control Group

In scientific experimentation, a group of subjects who do not receive the treatment or intervention being tested, used as a benchmark to measure how the other tested subjects do.

Participant

An individual who takes part in a particular process or activity.