Wavelength

Discussion/Scientific Explanation: In order to successfully analyze colas, one must become familiar with a Spectrophotometer 20. In order to do this, one must figure out determine the relationship between the wavelength of light absorbed and the color of a compound. Next, one must determine a way to relate the amount of light absorbed with the concentration of the solution. After gaining knowledge about these two parts of the lab, one will be able to determine how a Spectrophotometer 20 can be…

furthered our understanding of photosynthetic reactions by and experimenting with the factors that affect photosynthesis, which are light intensity, pigments, and light wavelength. By experimenting with these factors, our group was able to create an action and absorbance spectrum, which allowed us to determine which light wavelengths do the pigments in plants respectively absorb for photosynthesis. This allowed us to fully understand what conditions photosynthesis must…

Observation Why do shadows form? Why does light change directions when it hits a mirror? Why can't you see sun rays in the atmosphere? Why does a sun ray turn into a rainbow when going through a prism? Why do mirages happen? Why does an object's appearance (color) change when in different color light? How do a bunch of tiny colored lights in a television make up just one color? Why in water, does it look like a straw is bent but it really isn't? What happens to a piece…

Both IR and UV spectroscopy are methods of measuring the wavelengths absorbed by a tested material. IR spectroscopy measures the absorbance of the tested material in the infrared spectrum, the section of the electromagnetic spectrum with a lower frequency than that observed in the visible light spectrum. Conversely, UV spectroscopy measures the absorbance of the tested material in the ultraviolet spectrum, the section of the electromagnetic spectrum with a higher frequency than that observed in…

perceive color. The way we see “Color” is determined by the wavelength of a stream of light. This means that each color of light has its own wavelength. The combination of all lightwaves (primary colors) produces white. The absence of lightwaves makes an object black. In science terms black is not seen as a color while white is. An object that has a specific color is only reflecting that lightwave at the observer’s eyes. By detecting the wavelength of incoming light, the eye can determine what…

The light from the bottom slit has to travel a little farther than the top slit to get to the same point. If that difference is exactly one wavelength, there will be constructive interference, because the two waves will be traveling in the exact same place, where a crest of a wave will meet a crest of another. If the difference is exactly half of a wavelength, there will be destructive interference, because the two waves will just cancel out, where the trough of the wave will meet the trough of…

Acoustics is the branch of physics concerned with the study of sound. Sound is a wave made of vibrations in the air. Waves can be measured in a range of different ways: by their amplitude, wavelength, frequency, speed, and, at times, their phase. Sound information is transmitted by the amplitude and frequency of the vibrations, where the amplitude is experienced as loudness and frequency as pitch. The vibration is started by some mechanical movement and this causes a vibration on the molecules…

Introduction A wave is a repeating disturbance or movement that transfers energy through matter or space. Waves are caused by vibrations. There are two types of waves, transverse, and longitudinal waves. The moving particles in transverse waves travel at right angles to the direction of transverse. Some examples of transverse waves are light waves and radio waves. A longitudinal wave is also known as a compression wave. The moving particles move back and forth in the same direction as the wave.…

Violet is at the short-wavelength end of the visible spectrum, 400nm, so it reflects the short wavelengths and absorbs longer wavelengths. However, red light is at the long-wavelength end of the visible spectrum, 700nm, so it reflects long wavelengths and absorbs shorter wavelengths. The shorter the wavelengths, the higher the light energy is so the temperature of the colours near the ‘violet’ end of the visible spectrum…

Joseph von Fraunhofer was a German optician and physicist who discovered and influenced how astronomers view the dark line spectrum, the spectrum of the sun and the diffraction of light. His discoveries turned him as a glassmaker with humble beginnings into a scientists whose discoveries would allow scientists after him to calculate the distances of stars and lead them to recognize that the universe is expanding. On March 6, 1787 in Straubing, Bavaria, Joseph Ritter von Fraunhofer was born into…