LESSON 7: OPTICS Flashcards
the study of the behavior and properties of light.
Optics
The only part of the electromagnetic spectrum that is visible to the eyes in the form of colors is?
Visible light (white light)
What are the Dual Nature of Light?
Particle/Corpuscular Theory & Wave Theory
asserts that light is composed of particles shooting out from a source in a straight-line motion.
Corpuscular/Particle Theory of light
Who introduced the particle theory?
Sir Isaac Newton
asserts that light has both electrical and magnetic components propagating in space and can be reflected when it hits an object.
Wave Theory of light
The wave theory of light was a contradiction by?
Christiaan Huygens
What are the Behaviors of Light?
Reflection, Refraction, Total Internal Reflection, Transmission, Absorption, Dispersion, Scattering, Diffraction, Interference
it is the bouncing back of light when it hits a boundary of another medium.
Reflection
it is the bending of the path of a light wave as it passes from one material into another material.
Refraction
it is the phenomenon that involves
the complete reflection of a ray of light within a medium from the surrounding surfaces back into the medium.
Total Internal Reflection
the passing of light through a material without being absorbed. For instance, an incoming light will just pass through a glass window as transmitted light.
Transmission
of light occurs when light strikes a material, and the energy that it carries is absorbed by the atoms of the material and is converted into thermal energy.
Absorption
it is the separation of visible light into its different colors. Upon passage through the prism, the white light is separated into its component colors - red, orange,
yellow, green, blue and violet.
Dispersion
it occurs when sunlight is redirected by the particles suspended in the atmosphere called scatterer.
Scattering
What are the two types of scattering?
Rayleigh and Mie scattering
happens when the size of the scatterer is smaller than the
wavelength of light being scattered.
Rayleigh scattering
occurs when light hits a water drop, aerosol, or other particle in the atmosphere that are large enough to scatter all the wavelengths of light.
Mie scattering
is the slight bending of light around barriers. For this behavior of light to be noticeable, the wavelength of light must be approximately the same or bigger than the slit or the opening of the barriers.
Diffraction
it occurs when two waves meet while traveling through the same
medium and this behavior of light occurs.
Interference
Interference can be?
Constructive and destructive
the interference of two or more waves of equal frequency and phase, resulting in their mutual reinforcement and producing a single amplitude equal to the sum of the amplitudes of the individual waves.
Constructive interference
the interference of two waves of equal frequency and opposite phase, resulting in their cancellation where the negative displacement of one always coincides with the positive displacement of the other.
Destructive interference
governed by the behavior and properties of light
Optical phenomena
What are the following Optical Phenomena?
Mirage, Haloes, Sun dogs, Rainbow
it is an optical illusion caused by atmospheric conditions, especially the appearance of a sheet of water in a desert or on a hot road caused by the refraction of
light from the sky by heated air.
Mirage
can be formed around the moon, sun, or any celestial light source when there is enough elevation for cirrus clouds.
Haloes
patches of light that sometimes appear beside the sun
Sun dogs
a spectrum of light appearing in the sky
Rainbow
Reflection, refraction, absorption, and dispersion can be explained by?
Wave and Particle Theory
scattering, diffraction, and interference can be explained by?
Wave theory
the photoelectric effect can only be explained by?
Particle theory
