Unformatted text preview: a. Suppose in a Young double slit experiment, the phase of the wave produced by Problem 1. Young's experiment. one hole is shifted relative to the second one by phase φ . What
7C: Exam-types Problemshappens toofthe interference pattern,t qualitatively?
for Week #4 of thicknes and index of
b. Consider the young double-slit experiment where you introduce a slab
refraction 0 n in front of one of the second slit (on the side where the light comes from). Phrase the condition for the Sourav K. Mandal
positions on the screen (angle is also ok) for maxima of interference in terms of slit separation
L, and wavelength λ and n and t. 9/23/04 Problem 1
Giancoli Problem 35-15. Feel free to use complex exponentials instead of phasors. Problem 2
A perfectly ﬂat piece of glass (n = 1.5) is placed over a perfectly ﬂat piece of
black plastic (n = 1.2) as shown in the top part of picture below (Fig. 1). They
touch at the leftmost point. Light of wavelength 600 nm is incident i normally
from above. The resulting fringe pattern is shown in the bottom part of the
1. Do the shaded regions in the fringe pattern represent dark areas or bright
2. How thick is the space between the glass and plastic at the right side?
3. If the region between the the glass and plastic is ﬁlled with water i (n =
1.33), what will the pattern look like? 1 2 d, screen distance ...
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- Spring '08
- Quantum Physics, Wavelength, Double-slit experiment, Thomas Young, 600 nm, Sourav K. Mandal