When a Light Ray Meets an Interface Between Two Media

question 27

Multiple Choice

When a light ray meets an interface between two media, how does the angle of refraction (assuming there is a transmitted ray) compare to the angle of incidence?

• A) The angle of refraction is always less than the angle of incidence.
• B) The angle of refraction is always greater than the angle of incidence.
• C) It may be greater than, equal to, or less than the angle of incidence.
• D) The angles are equal.

---

Definitions:

Reliability

The extent to which a measurement instrument yields reliable and steady outcomes across different periods.

Validity

The degree to which an idea, conclusion, or measurement is based on solid grounds and accurately reflects the reality.

Cognitive-behavioural Assessment

Evaluation process that examines thought and behavior patterns to address psychological issues.

Test-retest Reliability

The consistency of a psychological test or assessment's results over time, indicating the instrument's stability.