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Questions and Answers
Which phenomenon describes the bending of light as it passes from one medium to another?
Which phenomenon describes the bending of light as it passes from one medium to another?
- Light diffraction
- Light scattering
- Light absorption
- Light refraction (correct)
What is the principle that governs the reflection of light off a smooth surface?
What is the principle that governs the reflection of light off a smooth surface?
- Huygens' principle
- Law of reflection (correct)
- Snell's law
- Principle of least action
Which of the following statements about light refraction is true?
Which of the following statements about light refraction is true?
- All materials refract light in the same way regardless of their properties.
- The angle of refraction is always larger than the angle of incidence.
- Refraction does not occur at the boundary of two different media.
- Refraction can cause an image to appear distorted. (correct)
What happens to the speed of light when it transitions from air to glass?
What happens to the speed of light when it transitions from air to glass?
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Which of the following best describes total internal reflection?
Which of the following best describes total internal reflection?
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Study Notes
Light Refraction and Reflection
- Refraction: Refers to the bending of light as it passes from one medium to another, due to a change in speed.
- Snell's Law: Governs refraction and relates the angles of incidence and refraction to the indices of refraction of the two media.
Reflection of Light
- Law of Reflection: States that the angle of incidence equals the angle of reflection when light reflects off a smooth surface.
Refraction Properties
- Speed of Light: Light slows down as it transitions from air (approximately 299,792 km/s) to glass (approximately 200,000 km/s).
- True Statements about Refraction: These include that light bends toward the normal when entering a denser medium and away from the normal when entering a less dense medium.
Total Internal Reflection
- Total Internal Reflection: Occurs when light travels from a denser medium to a less dense medium, and the angle of incidence exceeds the critical angle, resulting in all light being reflected back into the denser medium.
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