PreLab – Wave Optics 2              Name:

 

1.      Referring to “Figure 1-Part A the double slit”, please select the correct relationship between q, d, and ml.

(a)   tan q = ml / a

(b)   tan q = d / ml

(c)   sin q = ml / d

(d)   sin q = ml / a

(e)   sin q = d / ml

 

2.     Referring to “Figure 2- The double slit interference pattern”, please select the correct relationship between q, y, and D.

(a)   tan q = y / D

(b)   tan q = D / y

(c)   cos q = y / D

(d)   sin q = y / D

(e)   sin q = D / y

  1. What happens if the aperture, a, is starts approaching (becoming very small) value of lambda, l?
    1. The patterns spread out too far to measure
    2. The patterns start merging together
    3. A set of fringes will be superimposed on the double-slit interference pattern
    4. The interference patterns will become progressively “sharper”

 

  1. (This question is worth 50% of your pre-lab, and is your opinion)   What was your favorite part of the lab?
    1. In lab lecture with PowerPoints
    2. In lab lecture using the chalk board (although this was very limited)
    3. The pre-lab aspect of preparing you for the lab
    4. Posting of the PowerPoints so that you had example data while performing analysis
    5. Group quizzes
    6. Full page graphs by hand to minimize uncertainty