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Flashcards on Geometric Optics
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What is the study of light and its behavior called?
Geometric Optics
What are the two main principles of geometric optics?
Reflection and Refraction
What is the law of reflection?
The angle of incidence is equal to the angle of reflection.
What is the phenomenon in which light changes direction when it passes from one medium to another?
Refraction
What is the focal point of a converging lens called?
The principal focus
What is the focal length of a lens?
The distance between the lens and its focal point
What type of lens causes light rays to diverge?
A diverging lens
What is the formula for calculating magnification?
Magnification = Image height / Object height
What is the unit of measurement for the power of a lens?
Diopters
What is total internal reflection?
When light is completely reflected back into the same medium
What is the speed of light in a vacuum?
Approximately 299,792,458 meters per second
What is the law of refraction?
The ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant for a given pair of media.
What is the critical angle?
The angle of incidence that results in an angle of refraction of 90 degrees.
What is an optical lens?
A transparent object made from materials that refract light to produce an image
What is the relationship between the object distance and image distance for a converging lens?
Object distance is greater than image distance
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Test Your Knowledge
What is the study of light and its behavior called?
Geometric Optics
Wave Optics
Physical Optics
Quantum Optics
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What are the two main principles of geometric optics?
Reflection and Dispersion
Refraction and Absorption
Reflection and Refraction
Diffraction and Interference
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What is the law of reflection?
The angle of incidence is equal to the angle of reflection.
The angle of incidence is greater than the angle of reflection.
The angle of incidence is less than the angle of reflection.
The angle of incidence has no relation to the angle of reflection.
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What is the phenomenon in which light changes direction when it passes from one medium to another?
Refraction
Reflection
Diffraction
Polarization
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What is the focal point of a converging lens called?
The central point
The principal focus
The vertex
The center of curvature
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What is the formula for calculating magnification?
Magnification = Image height x Object height
Magnification = Image distance x Object distance
Magnification = Image height / Object distance
Magnification = Image height / Object height
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What is the unit of measurement for the power of a lens?
Meters
Newton
Diopters
Watts
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What is total internal reflection?
When light is completely reflected back into the same medium
When light is absorbed by the medium
When light is refracted to a greater angle
When light is polarized
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What is the speed of light in a vacuum?
299,792,458 meters per minute
299,792,458 meters per second
299,792,458 meters per hour
299,792,458 meters per day
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What is the critical angle?
The angle of incidence that results in total internal reflection.
The angle of incidence that results in an angle of refraction of 90 degrees.
The angle at which light is completely absorbed by the medium.
The angle at which light undergoes maximum diffraction.
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