By looking at Table A in the microscopic light results, it can be seen that the results would obey the inverse square law. This was because as the distance increases the light intensity of the microscopic light decreases. The graphs that demonstrate the inverse square law can be seen in figure 1 and 3. Thus, it is evident that the relationship between light intensity varies inversely with the square of the distance holds truth in real-life situations and or under laboratory conditions. The reason for this was because figure 1 was tested in the dark room (under laboratory) whilst figure 3 was tested with other sources of lights (real-life situation) such as sunlight. Therefore, the results obtained from the experiment supported the hypothesis which was if the distance increases, light intensity decreases.
The results obtained from the experiment supported the hypothesis. This was because as the distance increases the light intensity of the LED light decreases. The LED light phase 1 results strongly demonstrate that an incoherent light obeys the inverse square law under laboratory conditions and real-life situation. Figure 1 and 7 shows that the light intensity varies inversely with the square of the distance. Therefore, the results obtained from the experiment supported the hypothesis.
The graphs for the fluorescent light are shown in figure 11 and 12 obey the inverse square law. This was because as the distance increases the light intensity of the fluorescent light decreases. The graphs or the results for the fluorescent light was tested in the sunlight or in a dark room follows the inverse square law. Therefore, the results obtained from the experiment supported the hypothesis.
The possible error in doing this experime...
... middle of paper ...
...s measuring the intensity of the radiation instead of the light intensity of the light. The intensity of the radiation obeyed the inverse square law. This was because the results demonstrated as the object’s temperature increases, then it emits most of its light at higher and higher energies. As the source move further away, the emitted particles were dispersed and therefore the chances of it striking the radiation measurement device will be unlikely. Therefore, the radiation intensity follows the inverse square law as one move away from the source. This can be implied that the light intensity of a light source will obey the inverse square law giving that the light source is non-coherent.
Conclusion:
The relationship between light intensity varies inversely with the square of the distance holds truth in real-life situations and or under laboratory conditions.
In the movie Edward Scissorhands, a lot of different cinematic techniques are used. This movie mostly focuses on lighting, usually using darker low-key lighting throughout most of the film to create a darker, creepy tone. Low-key lighting is used mostly in scenes with Edward scissorhands in them, not as much with the girl. A good example of these low-key lighting scenes are the beginning ones, when the girl first enters Edward’s castle. The atmosphere inside is dark and creepy, adding to the already mysterious and dark tone of the movie. Another example of a scene with low-key lighting is the very beginning of the credits screen. The words are displayed in white with the rest of the background as a dark and evil setting. This already gives
5th Feb, 2014. Wolf, Johnathan. " The Spotlights." Wolf, Johnathan. AP Physics B. Barron’s:
In 1895, Professor Wilhelm C. Roentgen, a German physicist, was working with a cathode ray tube, much like our fluorescent light bulb. The tube consisted of positive and negative electrodes encapsulated in a glass envelope. On November 8, 1895, Roentgen was conducting experiments in his lab on the effects of cathode rays. He evacuated all the air from the tube and passed a high electric voltage through it after filling it with a special gas. When he did this, the tube began to give off a fluorescent glow. Roentgen then shielded the tube with heavy black paper and discovered a green colored fluorescent light could be seen coming from a screen located a few feet away from the tube.
... has more CO2 than the negative controls. There will be more spinach circles in the red food coloring than the green and blue food coloring. My hypothesis was supported for both experiments.
Beer-Lambert Law states the absorbance of light at a certain wavelength is directly proportional to the concentration of a solution. Which basically means the darker t...
In my experiment I am going to see how light affects the rate of photosynthesis. To do this experiment I am going to set up the apparatus as shown in figure 1.
Beers Law is the absorbance over concentration(mol/L). The Linear regression for this experiment was Abs = 3.990 X 104 Concentration(M) + .05956 and the reason why the experiment required this linear regression was to determined the rate law. by founding the specific wavelength of the substance being used, in this experiment it will be crystal violet decolorized over a series of Dilutions. Meaning the experimenters first had to have a stock solution and take 10ml of that stock solution to a beaker with 10ml H2O over a series of 5 dilutions. The Colorimeter was used to measure absorbance vs. concentration of crystal violet at specific times, pseudo k, and actual k. These are gathered through logger pro, so the graphs can be formed. In determining the actual k was the use of the “flooding technique” of OH- were the Crystal violet is relative to OH- making the actually k and if the concentration of hydroxide is constant then it becomes a pseudo-order. In the experiment we could have some errors such as not properly cleaning the cuvlette with the kimwhipes and the way to reduce this error is by during after every reaction we
The energy transformation in an incandescent globe is complicated, but not so much so that it is hard to understand. The energy is transferred from the wire into the filament- causing it to heat up. When the filament is heated, it produces...
LEDs are all around us, in our devices as computer, portable, our cars and even our homes. When something electronic lights up, there’s a good chance that an LED is behind
Aim: The aim of this experiment is to measure the effect of different distances in centimeters, on the intensity of light using a voltmeter on a clear light bulb using a photovoltaic cells to detect the intensity of the light at different distances. The voltmeter will provide the readings of the light intensity with the Voltage as the unit of light intensity.
-Published his experiments on Sound and Light in the Philosophical Transactions of the Royal Society
At these wavelengths absorption of lights may change between blood with more oxygen and blood with scarce oxygen. It is known that oxygenated blood absorbs more of the infrared light and lets the red light to pass through easily while deoxygenated blood allows infrared light to pass through it and absorbs the red light.
There are two kinds of light, the common and the artificial; the common is not at our disposal, the artificial is at our disposal. There are two modes of using each, either to the light, or from the light (to the side?). There is little use of that which is from (or oblique to the light), and the degree of it is obvious. As to opposite the light, we must turn the part to be operated upon to that which is most brilliant of present and convenient lights, unless those parts which should be concealed, and which it is a shame to look upon; thus the part that is operated upon should be opposite the light, and the operator opposite the part operated[p. 162] upon, except in so far as he does not stand in his own light; for in this case the operator will indeed see, but the thing operated upon will not be seen” (Part 3 Page 1) that in order to get a successful surgery and proper care, a physician must have the correct light. A doctor can stand or sit during a surgery; whatever is suitable for the surgeon. I learned and now understand why surgeon have certain lights during a procedure. In the 21st century, the surgeon is standing up with huge white bright lamps over the patient during the surgery on any time of the day. The lamps are adjustable to the angle the doctor needs the light in a certain area, as for which, during Hippocrates time, it had
1ml of this culture, i.e., 1% inoculum was added to 100ml liquid LB. The mixture is shaken and 4ml of this mix is taken in a cuvette and its optical density is measured at 600nm using a spectrophotometer, this is the 0 minute reading. The flask is incubated at 37°C in an incubator shaker. Then after 1hour another reading was taken for 4ml of the mixture. Subsequent readings were taken after 2,3,4..upto 18 hours. The O.D was reported in a tabulated form .Then a graph was plotted using these