A Diver Shines an Underwater Searchlight at the Surface of a Pond

question 29

Multiple Choice

A diver shines an underwater searchlight at the surface of a pond (n = 1.33) .At what angle (relative to the surface) will the light be totally reflected?

• A)47.3\(\degree\)
• B)41.2\(\degree\)
• C)51.1\(\degree\)
• D)58.7\(\degree\)
• E)49.8\(\degree\)

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Definitions:

Cognitive Walk-Through

A usability evaluation method in which the ease of learning of a product or system is examined through a series of steps simulating user interaction.

Post-Test Questionnaire

A survey or set of questions administered after an event, test, or experiment to evaluate outcomes, reactions, or learning.

Think Aloud

A technique in which people express their thoughts verbally in real-time, often used in usability testing to understand decision-making processes.

Confusing Icons

Symbols or pictographs in a user interface that are not clear in their meaning, leading to user confusion or misuse.