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Why does not white light when falls on objects makes them appear as black or white?
Many objects do appear black or white when light falls on them. If they are black, it means that the object is absorbing all wavelengths of visible light and not reflecting any. If they are white, it means that they are reflecting all wavelengths of visible light and not absorbing any. The color of an object is due to the wavelengths of light that it reflects.
How many wavelengths do you see in a rainbow?
In infinite number, technically. The wavelengths of visible light have a lower boundary of around 380nm to a highest one of 750nm. But it's impossible to really say how 'many' wavelengths are in between that. You'd have some of the light at 380.1nm, then some at 380.01nm, then some at 380.001nm, etc.
How is the refractive index used?
The refractive index measures the speed of light and wavelengths. Measuring the refractive index of an object by wavelengths is very confusing to most people. Many scientists have got it figured out.
A beam of light is made from how many lights?
the question is phrased poorly, but i think the answer is seven, as in white light is split into seven different wavelengths when passed through a prism.
Why are sky's blue why not violet?
The white light of the Sun consists of many wavelengths. When seen separately, each wavelength corresponds with a different color. The air molecules and particles of matter that make up our atmosphere scatter some of the Sun's light as it travels to Earth, especially the shorter wavelengths that give us the color blue. Coming to us from all angles in the sky, these light waves make the sky appear blue.
Why you use mercury lamp instead of ordinary light or sodium lamp in constant deviation?
we use mercury lamp instead of ordinary lamp because ordinary lamp has many wavelengths when mercury lamp has single wavelength so in constant deviation we use only mercury lamp.
What advantage does a plant obtain by having molecules that act at different wavelengths?
Different wavelengths may be present at different times, or in different environments. If a plant is able to photosynthesise using light of many different wavelengths, it is able to continue to function in a range of situations - when other plants may not have been able to.
How many atoms of Mercury in Mercury II chloride?
Two mercury atoms present in mercury(II)chloride.
What determine the color of an object?
Light comes in many different "wavelengths". The wavelength of a beam of light determines its color.White light contains light of all different wavelengths, but objects can reflect of absorb different wavelengths.The light that an object reflects determines its color.In other words, an object that looks red must be absorbing all wavelengths of light except red.
How is a laser light different from a regular light?
laser light has a constant wavelength whereas regular light is made up of many wavelengths
Why does not white light when falls on objects makes them appear as black or white?
Many objects do appear black or white when light falls on them. If they are black, it means that the object is absorbing all wavelengths of visible light and not reflecting any. If they are white, it means that they are reflecting all wavelengths of visible light and not absorbing any. The color of an object is due to the wavelengths of light that it reflects.
What compound do many algae have to help them absorb light at different wavelengths?
Accessory pigments
Green pigment in a plant that make it appear green is called?
Chlorophyll is the pigment in plants that makes the plant appear green.It absorbs blue and red wavelengths of light from the sun, and reflects green wavelengths of light.In the fall/ autumn, many plants produce less chlorophyll, and the karotenoids stand out. Karotenoids are other pigments that absorb green and blue wavelengths of light, and reflect yellow and red wavelengths of light instead.
How many percent of metals and silicate materials are present in mercury?
34%
How many light years away from the earth is mercury?
Mercury Is 0.000131 lightyears away from earth
How many light years is there between Mercury and Venus?
around 2.16 light years
How do speed of different forms of light compare?
How many different forms of light do you have ? ? The speed of all wavelengths of electromagnetic radiation is the same, at least in vacuum.
