Light Intensity Essay

Light Intensity Essay

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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.

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