Lab 7 diffraction

Lab 7 diffraction - Olivia Nixon Joe Durantini Dylan Bloom...

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Olivia Nixon Joe Durantini Dylan Bloom Lab 7: Diffraction and Interference of Light Introduction: The purpose of this lab was to experiment with different methods of diffracting light and measuring the wavelength of a monochromatic laser beam by spectroscopy. The theory is that the wavelength of a laser beam can be measured using mainly a meter stick after diffracting it through diffraction gratings, single and double slits, or off of a CD. Our goal is to measure wavelength. We used the following equations: Procedure: Part A: a) We set up laser and grating perpendicular to the wall b) We measured and recorded the distance from grating to wall L c) We measured and recorded the distance between bright spots Y and organized them according to their m value (e.g. 0, ±1, ±2, etc.) d) We divided each Y by L and took the arctan and then the sine e) We graphed m versus the sine calculation and took the slope to be equal to λ/d f) We then calculated the line spacing d for the grating from the line density in order to
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Lab 7 diffraction - Olivia Nixon Joe Durantini Dylan Bloom...

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