Also because of its not a real parallel light it still has curved wave its not

# Also because of its not a real parallel light it

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Also, because of it’s not a real parallel light, it still has curved wave, it’s not perfect concentration, although it’s just like a parallel light in a short distance, but in the long distance just like the figure(5), we can still see those speckles, the curve element in the light. Answer to the questions 1. The y value decreased when the size of slit increased, which also means that the angle decreased when the size of slit increased. 2. Different colors may have different wavelength. So, the blond hair and dark hair will create different patterns. 3. Because the wavelength is smaller, from the equation dy/L=n λ, y is smaller, so the angle is also smaller. 4. When the multiple slit set turns up, the number of fractions turns up. 5. The fractions on screen will split more dramatically. 6. See figure 5 analysis 7. See figure 5 analysis Conclusion From these experiments above, we are able to use those formulas to calculate the wavelength and the slit size, and we also find the laser light has some important features that we talk about in the figure(5) analysis.

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• Fall '12
• BorisSinkovic
• Light, Wavelength

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