1. Write at least one paragraph in which you define diffraction and interference
ID: 1709556 • Letter: 1
Question
1. Write at least one paragraph in which you define diffraction and interference, discuss Huygens' Principle and explain why light passing through a narrow slit or set of fine slits will produce a pattern on a wall.2. Diode lasers produce a range of wavelengths. Do you think using the average made much difference in your calculations? Explain in detail.
3. How would the pattern on the wall have been different if you had used a helium-neon laser which only produces light of one wavelength?
4. What would the diffraction pattern look like if the light you used was composed of several specific wavelengths?
5. In order to have a clear diffraction pattern the slit must be around the same order of magnitude as, but not smaller than the wavelength of the light. What is the ratio of single slit width to wavelength for your experiment? How would the pattern on the wall change if you could gradually widen the slit?
Please show me step by step, thank you so much for your help
Explanation / Answer
1 ) when two waves interact, the principle of super position says that the resulting wave function is the sum of the two individual wave functions .This phenomenon is generally described in interference. when the crests over lap the super position wave reaches the maximum height. This height is the sum of their amplitudes this sort of interference is called constructive interference. when the crest of a wave over laps with a trough of another wave the waves cancel each other out to some degree. This sort od interference is called destructive interference. According to Huygens principle each part of the slit will acts as a point source . when the light from all points strikes the wall at a distance L from the slit patterns of light and dark spots can be seen.when nearly parallel beams arriving at a wall are super imposed and there is differernce in the distance travelled by the light that passed through the different parts of the slit.Related Questions
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