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Why does an object reflect a particular light frequency but not other frequencies?
Wiki User
∙ 9y ago
A very intruiging question. First you must know that our eye can percieve light waves of frequencies 4000-7000 Angstrom. Now take the leaf for example. Its color is green. Why is it green? Its because the leaf absorbs all other light waves except green. It reflects it back. So to the green wave it acts as a mirror. Not exactly. You see elements emit that light which it absorbs (law laid down by Fraunhoffer). So the compound which is present in chlorophyl absorbs green and emits green also. So the green waves energy is conserved.
Wiki User
∙ 9y ago
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What is the relationship between natural frequencies of an object and the harmonics that can be created in the object?
The frequencies of the harmonics are integer multiples of the natural frequency.
Why are certain colors absorbed into some objects but not others?
colors are different frequencies of light. atoms in objects vibrate in specific frequencies too. objects with atoms vibrating in the frequency corresponding to the color absorb that color and reflect the other frequencies they can't absorb. the color of an object is basically the frequency of light that it can't absorb.
Why does an orange look orange and and an apple look red?
The colors that we call orange or red are particular frequencies of visible light. An object that reflects mostly the light in a particular frequency will "look" that color. It is the compounds in the skins of fruits that absorb and reflect light in different frequencies, In the case of the apple, the compounds inside the skin absorb a completely different range of frequencies, and are therefore a different color.* Objects that absorb almost all colors of light appear brown or black. Those that absorb little light of any frequency appear white.
What color will an object appear that reflect red and yellow light frequencies?
Orange
How does frequency of the ultrasonic waves of the echo from the stationary object compare with frequency of the ultrasonic waves of the probe?
the frequencies are same.
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.
What did you observe about the wavelength and frequencies of the different colors of light?
A higher frequency means a shorter wavelength, and a lower frequency means a longer wavelength.
Can you cause an object to oscillate at a frequency other than its natural frequency?
Yes. It may respond to harmonic frequencies also.
How do objects reflect light to show different colors?
In the visible spectrum of light, all colors have difference frequencies of wave lengths. So, an object that is green would absorb all the frequencies of light with in the spectrum except green, the light reflected from the object then hits our retina and then our brain tells us to interpret that object to be green. The frequencies that are absorbed in to the object are then converted into energy. That's why when you wear black cloths, black absorbs all visible light, you feel warmer, because the light it absorbs is converted into heat. And white would the opposite from that. If you are wondering why they would reflect that certain color, it is because all atoms and molecules have electrons. Electrons in atoms have a natural frequency that they vibrate when light hits them. The light with the same frequency as the natural frequency of the electrons in the atoms would be reflected.
When condition occurs when frequency is equal to natural frequency?
A condition known as resonance, in which the object vibrates much stronger than at other frequencies.
When an object is forced to vibrate at its natural frequency resonance occurs True Or False?
The frequency or frequencies at which an object tends to vibrate with when hit or struck, plucked, strummed or somehow disturbed is known as the natural frequency.
What is the ability of an object to vibrate by absorbing energy at its natural frequency?
"Resonance" refers to the fact that, when an object is excited at, or near, its natural frequency, it will vibrate much strong than when excited at other frequencies.
