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Questions and Answers
What type of surface does a smooth reflection occur on?
What type of surface does a smooth reflection occur on?
- Polished surface (correct)
- Textured surface
- Rough surface
- Uneven surface
Which color of light is least affected by reflection?
Which color of light is least affected by reflection?
- Green (correct)
- Red
- Blue
- Yellow
What happens to the angle of reflection when a light ray strikes a surface?
What happens to the angle of reflection when a light ray strikes a surface?
- It becomes unpredictable
- It decreases
- It remains the same (correct)
- It increases
What type of surface reflects light in a regular manner?
What type of surface reflects light in a regular manner?
What color is an object that reflects all light and absorbs none?
What color is an object that reflects all light and absorbs none?
When light is incident on a smooth surface, what happens to the angle of reflection?
When light is incident on a smooth surface, what happens to the angle of reflection?
What is the main goal of physics?
What is the main goal of physics?
What is a scientist who specializes in the field of physics called?
What is a scientist who specializes in the field of physics called?
During which century did the natural sciences emerge as unique research endeavors?
During which century did the natural sciences emerge as unique research endeavors?
What are some interdisciplinary areas of research that physics intersects with?
What are some interdisciplinary areas of research that physics intersects with?
Which academic discipline is considered one of the oldest, possibly the oldest?
Which academic discipline is considered one of the oldest, possibly the oldest?
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Study Notes
Reflection of Light
- Smooth reflection occurs on a smooth surface.
- Green light is least affected by reflection.
Laws of Reflection
- When a light ray strikes a surface, the angle of reflection equals the angle of incidence.
- When light is incident on a smooth surface, the angle of reflection equals the angle of incidence.
Types of Surfaces
- A smooth surface reflects light in a regular manner.
Colors and Reflection
- An object that reflects all light and absorbs none appears white.
Physics Overview
- The main goal of physics is to understand the natural world.
- A scientist who specializes in the field of physics is called a physicist.
History of Physics
- The natural sciences emerged as unique research endeavors during the 17th century.
Interdisciplinary Research
- Physics intersects with interdisciplinary areas of research, including astronomy, engineering, and mathematics.
Academic Disciplines
- Philosophy is considered one of the oldest academic disciplines, possibly the oldest.
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