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23 Nov 2019

1. Light from a helium-neon laser is shines on a slit of width0.02mm. Describe qualitatively the pattern of light seenona screen 1.0 meter away.


(a) How would the pattern be different if the slit were 0.06mmwide instead of 0.02 mm?

(b) How would the pattern be different if instead of oneslit,there were two slits, each 0.02 mm wide, separated by 0.2mm?

(c) How would the pattern in (b) be different if there weretwoslits, each 0.02 mm wide, separated by 0.4 mm?

(d) How does the width of the slits affect the intensity ofatwo-slit interference pattern?

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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A laser with wavelength d/8 is shining light on a double slit with slit separation 0.500 mm. This results in an interference pattern on a screen a distance L away from the slits. We wish to shine a second laser, with a different wavelength, through the same slits. What is the wavelength λ of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if d = 0.500 mm?

1. Write at least one paragraph in which you define diffraction andinterference, discuss Huygens' Principle and explain why lightpassing through a narrow slit or set of fine slits will produce apattern on a wall.
2. Diode lasers produce a range of wavelengths. Do you think usingthe average made much difference in your calculations? Explain indetail.
3. How would the pattern on the wall have been different if you hadused a helium-neon laser which only produces light of onewavelength?
4. What would the diffraction pattern look like if the light youused was composed of several specific wavelengths?
5. In order to have a clear diffraction pattern the slit must bearound the same order of magnitude as, but not smaller than thewavelength of the light. What is the ratio of single slit width towavelength for your experiment? How would the pattern on the wallchange if you could gradually widen the slit?
Please show me step by step, thank you so much for your help

Refer to the graph of light intensity vs. position of theprobeshown below. The graph was made with helium-neon laser light(632.8nm) shined through two very narrow slits separated by asmalldistance. The slits were 2.0 meters away from the probe.

http://tinypic.com/r/2i7wcvl/5

What is the separation of the slits? Show your calculations.
What is the width of the slits? Show your calculations.
Sketch on the same axes the light levels you would get if theslitswere twice as far apart (Assume that the slit widthisunchanged).

I honestly have no idea where to even begin. No formulaswereprovided. I need help please!

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