lab Interference and Diffraction

Overview

1. Objective:
   
   
2. Methodology:
3. Questions:
4. 1. 1. How would be the pattern on the screen if a thin wire on wide open slide is used instead of the thin opening (slit) in Part I?
      2. Discuss the possible sources of error that contribute to the percent errors in your experimentally- determined values of d and D.
      3. For a given pair of slits, how does the pattern alter if one switches from a higher-λ laser (say, red) to a lower- λ (say, green) laser?
      4. What will happen in the two-slit pattern obtained in your experiment, (i) if the slit width (D) is reduced keeping the distance between the slits (d) same? And (ii) if the distance between the slits (d) is reduced keeping the slit width (D) same? Explain with diagrams.
      5. In your experiments, the slits are placed vertically. How would be the pattern on the screen with two-slit if another two-slit is overlapped horizontally?
      6. What do you think will happen in the interference pattern if you keep adding slits at the same separation
      10. Results And Calculation:
      12. Conclusion: