In a demonstration, a laser (^ = 632 nm) shines through a grating that has N equally spaced, equal width slits. It produces a pattern of bright spots on a screen 1.5 m behind the grating. The intensity of the pattern vs. position on the screen is shown in the graph: A.A a. -10 -5 5 10 x(mm) 15. What is the intensity at x = 0 in terms of the intensity through a single slit lo? a) l = lo b) / =4 lo c) / =9 lo d) I =16 lo :)l =25 lo. 16. What is the slit width a? a. a = 0.11mm b. a = 0.16mm C. a = 0.95mm d. a = 1.05mm e. a = 3.79mm
In a demonstration, a laser (^ = 632 nm) shines through a grating that has N equally spaced, equal width slits. It produces a pattern of bright spots on a screen 1.5 m behind the grating. The intensity of the pattern vs. position on the screen is shown in the graph: A.A a. -10 -5 5 10 x(mm) 15. What is the intensity at x = 0 in terms of the intensity through a single slit lo? a) l = lo b) / =4 lo c) / =9 lo d) I =16 lo :)l =25 lo. 16. What is the slit width a? a. a = 0.11mm b. a = 0.16mm C. a = 0.95mm d. a = 1.05mm e. a = 3.79mm
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Transcribed Image Text:In a demonstration, a laser (A = 632 nm) shines through a grating that has N equally
spaced, equal width slits. It produces a pattern of bright spots on a screen 1.5 m behind
the grating. The intensity of the pattern vs. position on the screen is shown in the graph:
-10
-5
10
x(mm)
15. What is the intensity at x = 0 in terms of the intensity through a single slit lo?
a) I = lo
b) I=4 lo
c) I =9 lo
d) I=16 lo
e)l =25 lo.
16. What is the slit width a?
2 = 0.11mm
b. a = 0.16mm
a. a =
C. a = 0.95mm
d. a = 1.05mm
e. a = 3.79mm
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