Podcast
Questions and Answers
What is the speed of light in a vacuum?
What is the speed of light in a vacuum?
- 200,000,000 meters per second
- 299,792,458 meters per second (correct)
- 300,000,000 meters per second
- 100,000,000 meters per second
Which scientist first measured the speed of light?
Which scientist first measured the speed of light?
- Albert Einstein
- Isaac Newton
- Ole Rømer (correct)
- Galileo Galilei
What is the phenomenon where light waves change speed and direction as they pass from one medium to another?
What is the phenomenon where light waves change speed and direction as they pass from one medium to another?
- Diffraction
- Dispersion
- Reflection
- Refraction (correct)
What is the phenomenon where light waves bend as they pass from one medium to another?
What is the phenomenon where light waves bend as they pass from one medium to another?
In which medium does light travel fastest?
In which medium does light travel fastest?
What property of a material determines how much light is refracted when it enters the material?
What property of a material determines how much light is refracted when it enters the material?
What is the term for the bending of light waves around obstacles in their path?
What is the term for the bending of light waves around obstacles in their path?
Which property of a material determines how much light is absorbed by the material?
Which property of a material determines how much light is absorbed by the material?
What happens to the speed of light when it enters a medium with a higher refractive index?
What happens to the speed of light when it enters a medium with a higher refractive index?
Flashcards
Speed of light in a vacuum?
Speed of light in a vacuum?
299,792,458 meters per second
Who first measured light speed?
Who first measured light speed?
Ole Rømer
What is Refraction?
What is Refraction?
The change in speed and direction of light as it passes from one medium to another.
Fastest medium for light?
Fastest medium for light?
Signup and view all the flashcards
Material property affecting light refraction?
Material property affecting light refraction?
Signup and view all the flashcards
What is Diffraction?
What is Diffraction?
Signup and view all the flashcards
Material property affecting light absorption?
Material property affecting light absorption?
Signup and view all the flashcards
Light speed in a higher refractive index?
Light speed in a higher refractive index?
Signup and view all the flashcards
Study Notes
Light and Media
- The speed of light in a vacuum is a fundamental constant of the universe.
- Danish scientist Ole Rømer was the first to measure the speed of light in 1676.
Refraction
- Refraction is the phenomenon where light waves change speed and direction as they pass from one medium to another.
- The phenomenon where light waves bend as they pass from one medium to another is also known as refraction.
Light Speed in Media
- Light travels fastest in a vacuum.
- The speed of light is affected by the refractive index of a medium.
Refractive Index
- The refractive index of a material determines how much light is refracted when it enters the material.
Diffraction
- Diffraction is the term for the bending of light waves around obstacles in their path.
Absorption
- The property of a material that determines how much light is absorbed by the material is its absorbance.
Light Speed in Media (continued)
- When light enters a medium with a higher refractive index, its speed decreases.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
