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Why should you start with low power on a light mircroscope?
Because on high power the magnification is so high you cannot tell where you are on the surface of the object, and so cannot adjust the position to the place you really want.
Does the color white absorb heat or reflect it?
Because it has no color, therefore nothing to absorb. With light energy, surface colors absorb and reflect various color frequencies (electro-magnetic wavelengths). For instance, blue paint reflects higher frequency wavelengths which our eyes see, and our brains interpret, as blue values, and it absorbs lower range frequencies we would interpret as red and yellow. White surfaces reflect high quantities of all of the visible range of frequencies of electro-magnetic wavelengths, so the frequencies reflected back at the viewer contain all visible color ranges that are contained in the light hitting that surface and appear the same color.
High energey light has what wavelength?
High energy light has a small wavelength, and a high frequency.
How does a mirror reflect heat?
MirrorsBecause if they didn't, they wouldn't be mirrors; they'd be windows -- or walls! Perhaps you wish to know how they reflect or why some surfaces reflect whereas others don't.There are basically three types of surfaces: those that absorb light, those that reflect it, and those that neither reflect it nor absorb it. Not counting "black holes," there are no objects that absorb all light perfectly or reflect all light perfectly or pass light perfectly. All objects reflect and absorb light to some degree. Some reflect more than absorb, some absorb more than reflect, and some -- like windows -- let light pass right through them. Mirrors are highly reflective, whereas black cotton or wool fabric doesn't reflect much at all.So, let's take a look at stuff that reflects. A mirror reflects, but so does a piece of loose-leaf paper. If the paper did not reflect some light, it would be invisible to the human eye. If it absorbed all the light that struck it, there would be nothing for your eye to see, because when you "see" the paper, you are actually detecting the light reflected from it. But a piece of paper is not a mirror, is it? So, what's the difference?The difference is the amount of "scatter" or diffusion caused by the surface of the paper. When the light rays hit the surface of the paper, they don't bounce off in the same direction; they scatter in many directions. We characterize that phenomenon as diffuse reflection. This occurs because the surface of the paper, when viewed under a microscope, is uneven, granular, and bumpy. See the nearby link for a diagram of light rays hitting a surface and scattering. The rays are bouncing off in all different directions. Objects that produce diffuse reflections don't make very good mirrors.But when light rays hit a very flat, smooth, polished surface, they bounce off at very predictable and consistent angles. They don't bounce off in all directions. In fact, the measure of the angle at which the light hits the surface (the angle of incidence) is the measure of the angle at which the light bounces off the surface (the angle of reflection). When this happens, you have a mirror. See the nearby link for a diagram depicting reflection.the back of a mirror is a thin layer of metal. well polished metal reflects images.Mirrors show reflection by light will reflect at a mirror surface so that the angles of incidence and reflection are equal.Mirror has at least one reflective object so that shows the image, that you put in front of that mirror. And how they work is that light helps you see your reflection in a mirror ; Light is energy traveling at high speed.And when it hits ah object all the energy has to go somewhere.- Melissa Lindsay (:The back part of the mirror is made of of metal. They polish the metal. Because metal reflects light if shows your reflection.
What would a red object look like shone onto a blue light?
Red and blue are at opposite ends of the visible light spectrum, red being of low frequency, and blue being of high frequency. Sunlight contains frequencies across the whole frequency range, which appears white. An object that appears white reflects all frequencies. A red object appears red because it reflects red (low frequency) light, and absorbs all other colours. Blue light contains only high frequencies. If you are in a darkened room, lit only by blue light, white objects will appear blue because they are reflecting the blue light, and no other frequency is available. But a red object absorbs high-frequency (blue) light, and since this is the only light in the room, it does not reflect any light. Objects that do not reflect any light appear black. Some objects appear black even in sunlight, because they absorb all frequencies and do not reflect any. So to answer the question, when you have a red object that is lit only by blue light, it will appear black.
Why does a diamond shine?
When cut and polished , it has a high refractive index , and reflects any available light.
What causes the moon to give off so much light?
The surface of the moon is covered with a high reflecting stonepowder, which reflects the sunrays. So, the moon itself doesn't glow, the sun does.
Where does angle of incidence happen?
At the point of refraction. There are going to be more than one in a standard mirror. The surface of the mirror glass will reflect as well as the back of the glass. The "silvering" then reflects the majority of the light. Most high quality optics have the surface coated with a reflective substance.
What causes us to be able to see the moon at night?
If compared to other non-star bodies, our Moon has a pretty high albedo - that is, it reflects a lot of light. What you see when you look at our Moon is sunlight reflected off of the Moon's surface.
Why do the polar regions have high albedo?
Because snow reflects light more than non-white regions of the Earth and albedo is a measurement of reflectance. By definition white reflects all visible light therefore albedo is greatest .
Why does a cat run with difficulty on a highly polished floor?
Because of the lack of traction. A highly polished floor is very very smooth, so it provides little to no friction that would help a cat when it runs or turns corners at high speeds. A cat's paw cannot grip the floor surface, which is why a cat will skid or slide when moving quickly.
What is polished water does it mean ultra-high pure water?
polished water is the water in which silica is removed and it is of high purity water.all the contaminants are removed including silica
Why would a decrease in the density of the ozone layer create a public concern?
Ozone absorbs and reflects most ultraviolet light and other high energy electromagnetic waves. A decrease in ozone will result in more of these rays reaching the surface of the earth. These rays are bad for the environment and people.
Does plastic look shiny when polished?
Many plastic can be polished to a high shine- but not all of them. There are hundreds of different chemical combinations known as plastics.
Why do the moon and planets shine?
Mars is called "the red planet" because of its high iron content. It may appear blue if visible in the night sky because of our atmosphere filtering out some wavelengths of the sun's light (which reflects off of Mars's surface, and into your eyes).
Is ruby rock shiny?
Yes, ruby is a shiny gemstone that is known for its intense red color and high luster. It can sparkle and reflect light beautifully when properly cut and polished.
Is Mars red because of the sun?
Mars is known as "the red planet" because of its reddish appearance. This is thought to be due to the presence of iron oxide on the planet's surface, which absorbs blue light and reflects red light. The surface of Mars is coated with a fine layer of dust, which contains a high concentration of this iron oxide. Sunlight does play a role in enhancing the redness of the planet, as the blue light is scattered in the atmosphere, leaving only the red light to be seen. However, Mars would still have a reddish appearance even without the sun's influence.
