Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. Objects that don’t allow light to pass through them is known as an opaque medium. These words deal with the way the light reacts when it interacts with a material. hard to understand; not clear or lucid; obscure: The problem remains opaque despite explanations. When an opaque object is placed in front of a light source, it prevents the light from passing through. Examples. Why Do “Left” And “Right” Mean Liberal And Conservative? 1 : blocking the passage of radiant energy and especially light : exhibiting opacity (see opacity sense 1) 2 a : hard to understand or explain opaque prose. He stayed in his own room, a dim light penetrating the opaque window-panes. In 1678, Christiaan Huygens (1629–1695) published Traité de la Lumiere, where he argued in favor of the wave nature of light. Substances are selectively absorbing—that is, they absorb radiation of specific wavelengths. An example of opaque is the quality of a black sheet of paper. opaque synonyms, opaque pronunciation, opaque translation, English dictionary definition of opaque. The energy of an acoustic, electromagnetic, or other wave is proportional to the square of its amplitude—i.e., the maximum displacement or movement of a point on the wave; and, as the wave Physics Phenomena "Physics is Fun" (Feimer's Physics Page) Physics Dictionary. Meaning "impervious to the rays of light" is from 1640s. opaque meaning: 1. preventing light from travelling through, and therefore not transparent or translucent: 2…. 2. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins So, it depends on the initial position and its final position. Simple Description. And while guessing at the true character of this opaque central part, a circumstance occurs disclosing it. Download and use it for your personal or non-commercial projects. Transparent medium. Translucent Objects -through which light can pass through partially (Plastic cup) Opaque Objects -through which light can not pass through (Apple or Brick) Check out our ANIMATED video! On putting water over the powder incident light gets refracted through water. Transparent is an adjective that describes material that allows objects behind it to be seen clearly. Based on how much light they allow to pass through them, objects are classified as Transparent objects, Opaque objects and Translucent objects. Eschewing the usual mathematical explanations for physics phenomena, this approachable reference explains complicated scientific concepts in plain English that everyone can understand. Color is a function of the human visual system, and is not an intrinsic property. Refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. opaque - WordReference English dictionary, questions, discussion and forums. Metals and many minerals are opaque. If light can pass directly through it, we can see directly through it! Visible light. The light energy stays inside the object when resonance occurs, but wha… Light cannot pass through. The Dictionary.com Word Of The Year For 2020 Is …, “Affect” vs. “Effect”: Use The Correct Word Every Time. Another more familiar example is "glass is transparent". A creamy, opaque mixture of the oil and water, called an emulsion, will result. translucent definition: 1. What happens to light waves when they encounter objects? One of these things is called resonance. An example of opaque is the study of astrophysics. When resonance occurs between a light wave and an object, the object absorbs the energy of that light wave. For example, waves in deep water travel faster than in shallow. Characteristics. That is why it looks transparent. As I organized my umbrella and shed my dripping coat, she sipped something golden and opaque from a tall pint glass. These wavelengths are not detected by our eyes. (That is the basic definition of "opaque"). The general tuckermanities are arrant Bubbles - ephemeral and so transparent - But this is, now, - you may depend upon it - Stable, and the goggle-eyed perch, of throwing a film over his eyes, rendering, The circular sheet of water reflected a luminous sky, and the shores enclosing it made an, When this stranger fixed upon an object, his eyebrows met, his large eyelids closed around so as to contract the range of his vision, and he looked as if he magnified the objects lessened by distance, as if he pierced those sheets of water so, One may picture, too, the sudden shifting of the attention, the swiftly spreading coils and bellyings of that blackness advancing headlong, towering heavenward, turning the twi- light to a palpable darkness, a strange and horrible antagonist of vapour striding upon its victims, men and horses near it seen dimly, running, shrieking, falling headlong, shouts of dismay, the guns suddenly abandoned, men choking and writhing on the ground, and the swift broadening-out of the, When a fire glowed, banks of smoke, blown level along the ground, would themselves become illuminated to an, About fifteen hundred feet from the ground, it encountered an, If now we were to try to penetrate to the soul of Quasimodo through that thick, hard rind; if we could sound the depths of that badly constructed organism; if it were granted to us to look with a torch behind those non-transparent organs to explore the shadowy interior of that, The echoes shrieked and barked, the hissing balls seemed actually to rarefy the air, and then, the opaque language of the official report, ondeursigtigheid, ondeurskynend, donkerheid, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. 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