Data

Analysis and Discussion

$7.$ There are $3$ kinds of slit separation, e$.$g$.\backslash (0\mathrm{.}2\backslash$mathrm$\{$~mm$\},0\mathrm{.}4\backslash$mathrm$\{$~mm$\}\backslash ),$ and $\backslash (0,6\backslash$mathrm$\{$~mm$\}\backslash ),$ used in the experiment. Match the slit number with its corresponding slit separation.

Given the slit width is $\backslash (\backslash$mathbf$\{0.05$ ~ $\backslash$mathrm $\{$ mm $\}\}\backslash )$ and the distance between double$-$slit and screen is $\backslash (\backslash$mathbf$\{60\backslash$mathrm $\{$ cm $\}\}\backslash ).$

$8.$ How does the double$-$slit pattern change as you select different laser lights from red to green with the same $0\mathrm{.}2$ mm double$-$slit? You may draw the patterns and$/$ or show by calculation to supplement your answer.

$9.$ How does the double$-$slit pattern change as you increase the slit separation from $0\mathrm{.}2$ mm to $0\mathrm{.}4$ mm $?$ You may draw the patterns and$/$ or show by calculation to supplement for your answer.

$10.$ Calculate the wavelengths of red and green laser lights.

Optics Experiment: Interference and Diffraction Laboratory Worksheet