Wavelength

Physics: Analogy of Light and Sound Light and sound share many common aspects. Today, we will study some of notable similarities and differences between the two. We can perceive both light and sound. We see through eyes and hear through ears. Both light and sound are waves. Light is an electromagnetic wave whereas sound is a mechanical wave. Light is created by interaction of electric and magnetic field. It does not require any medium for propagation, so it can propagate in free space. On the…

Patrick Jessop JMJ 12/15/14 Mr. Paul Period 07 Sunscreen Effectiveness For my science project this year, I have chosen to test the effectiveness of different SPF’s of sunscreen available in the consumer market. I hypothesize that the higher SPF sunscreens really do make a difference to the “sunburns” sustained by my test subjects. These higher SPF sunscreens are essential to help protect the skin from one of the worst kinds of skin cancer,…

Sunglasses at MBIS? Do you wear sunglasses? Well, at MBIS you don’t. Students at MBIS should be able to wear sunglasses at school because it can prevent eye damage and eye cancer. We should also examine why we shouldn’t to get a balanced view. Teachers at MBIS wear sunglasses, but kids aren’t allowed. Us kids are the future. Sunglasses protect the skin around your eyes. The skin around your eyes, including your eyelids, is the thinnest and most sensitive skin on your body which means that it…

the second experiment my hypothesis stated the rate of photosynthesis is dependent on the wavelength (color) of light absorbed. The rate of photosynthesis can be measured by the amount of oxygen produced from various wavelengths of light in the color spectrum. The graph generated using various wave lengths in the visible light spectrum supports the hypothesis by demonstrating the variation between wavelength and the change in the amount of O2 yielded. The green and red light were found to be the…

(20 per room).The first pedestal should be one foot tall, and each corresponding pedestal should increase by one foot increments each time until there is a 20-foot pedestal. 3. Set the lights in the room with the red LED lights to its starting wavelength: 700 nm. 4. In a separate third room with moderate lighting begin…

organelles, such as mitochondria, to be seen in detail for the first time. Unlike light microscopy, TEM uses a beam of electrons, denoted as a cathode ray, to scan samples. While the traditional optical microscope is restricted in resolution by the wavelength of…

Echolocation in Toothed Whales How Toothed Whales use Echolocation? Echolocation is a process of emitting sound and the interpreting and understanding of the echos which follow to determine an animal’s surroundings. This processed is used by different animals living in different environments but one of the most notable is the use of echolocation by toothed whales. Toothed Whales such as Dolphins and many types of Whales live under water and use echolocation for understanding of their…

light spectrum, with a continuous decrease in absorbance as wavelength increases. This coincides with the observation of red as the color of the corresponding solution, since red is at the opposite end of the spectrum. Figure 4 is the spectrum of the cobalt complex with CO3 as its ligand. This complex was observed to be green. This is justified by the dip in absorbance for this complex around the 550 nm mark, since that is the wavelength of green light. The absorbance spectrum of the cobalt…

You will never know the importance of color, until you see everything around you in black and white. It is true that human can live without colors but cannot live with happiness. Human can understand about the color due to Isaac Newton. He is the first one who can explain about the rainbow. He reflected white light with a prism. The light enters the prism from the top and reflects. Then the colors separate. The component of these colors are red, orange, yellow, green, blue, and violet. Nowadays…

polar compounds which show almost same retention time on C18 column [40]. It was also verified from the experimental results that both species give peaks around the same time of 4-5 minutes, so to avoid the confusion and overlapping of peaks, a wavelength of 250nm was selected where Formic acid gives high absorption and gives sharp peaks while methanol does not give any peak at 250nm. Around 4-5 minutes there will be a peak of Formic acid while any other peak will be an…