Highly polished silvery surfaces are
WebMar 16, 2024 · The chemical process of coating a glass surface with metallic silver was discovered by Justus von Liebig in 1835, and this advance inaugurated the modern techniques of mirror making. Present … WebHighly polished silvery surfaces are A. poor absorbers and poor emitters of radiation B. poor absorbers and good emitters of radiation C. good absorbers and poor emitters of radiation D. good absorbers and good emitters of radiation 19. The volume of a given mass of gas at 27 o C and 800 mmHg is 76cm 2. Calculate its volume at s.t.p A. 100.0 cm 3
Highly polished silvery surfaces are
Did you know?
WebSuitable abrasives are silicon carbide (Scotch-brite) pads or wheels, stainless steel pads, and powdered pumice stone. The pumice powder is slurried in a 5% oxalic acid solution and rubbed on with a cloth. All residues must be removed and the surface wiped dry with a clean cloth. Abrasives should not be used on highly polished (mirror) surfaces. WebMar 30, 2024 · Step by step solution: We know that a polished silvery surface is a good reflector of light. The mirror is an excellent example of polished silver surface. We know …
WebHighly polished silvery surfaces are A. poor absorbers and poor emitters of radiation B. poor absorbers and good emitters of radiation C. good absorbers and poor emitters of … Liquid silver polishes are common because you can work them into large or small areas, as well as intricate designs. They can be applied with a soft cloth or brush, then rinsed away. Creams and foams are very similar but usually take more elbow grease to work into the silver. While dips can create additional mess and … See more Look for silver polish that is cost effective and won’t require a lot to treat your silver items. Liquids and creams often come in smaller containers—you only need a small amount to be effective. Dips are usually larger containers … See more Silver cleaner and polish should be ammonia-free and scratch-resistant. Many jewelry cleaners and other metal polishes are not safe for silver … See more
WebWhat is the polished silver surface? e maximum radiation pressure exerted by sunlight in space (S 1350 W/m2) on a highly pr A. x 10-2 Pa B. 0.12 Pa c. 90x 10-6 pa D. 4.5 x 10-5 Pa E 23x 10-6 Pa 27. The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by B- 1.2 x 10°sin2240 240in SI units. WebThe Pros of Polishing Wear. Polishing wear can be used to your advantage. When machine parts are highly polished, there tends to be less drag or friction between the parts. This will help with the equipment’s efficiency by reducing amp draw, fuel consumption and possibly even the operating temperatures. Machine surfaces are often rough with ...
WebPolished silvery surface: A polished silvery surface works as a good reflector of light. An example of a polished silver surface is the mirror. The mirror is highly polished as well as …
WebIf the surfaces are rough there are far fewer molecules that are close but the rough surface against another rough surface causes friction as in two bricks rubbing against eachother. You can try this with two polished surfaces of metal or glass. Share Cite Improve this answer Follow answered Nov 12, 2015 at 17:26 Peter R 236 1 2 8 Add a comment how does eugenol work as an anestheticWebThe roughness of the stainless steel surfaces before silver plating wasat most 0.3 lm. Thenthe plateswere assembledwiththe insu-lating spacer and the silver surface was damaged with scratches. In a second coating step, a repair layer of silver was deposited by a selective electrochemical metallization (SEM) method over the damaged electroplated ... how does eubacteria eatWebHighly Polished 212 (100) .09 Roughly Polished 212 (100) .18 Commercial Sheet 212 (100) .09 Highly Polished Plate 440 (227) .04 Highly Polished Plate 1070 (577) .06 Bright Rolled Plate 338 (170) .04 Bright Rolled Plate 932 (500) .05 Alloy A3003, Oxidized 600 (316) .40 Alloy A3003, Oxidized 900 (482) .40 Alloy 1100-0 200-800 (93-427) .05 how does eucerin workWebMay 31, 2024 · The ions in copper alloys are both antiviral and antibacterial, able to kill over 99.9% of bacteria within two hours. Copper is even more effective than silver, which … how does euglena gracilis obtain foodWebDescription By the middle of the nineteenth century, the most common method of photography was the daguerreotype—Louis Jacques Mandé Daguerre’s miraculous … photo editor software like photoshopWebDec 15, 2024 · What is a polished surface? Polishing is the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment, leaving a clean … how does eumelanin differ from pheomelaninWebHighly polished metallic surfaces such as copper or aluminum usually have an emissivity below 0.10. Roughened or oxidized metallic surfaces will have a much higher emissivity … photo editor swap faces