An interference pattern is produced by light with a wavelength 600 nm from a distant source incident on two identical parallel slits separated by a distance (between centers) of 0.500 mm .
Part A
If the slits are very narrow, what would be the angular position of the first-order, two-slit, interference maxima?
Part B
What would be the angular position of the second-order, two-slit, interference maxima in this case?
Part C
Let the slits have a width 0.330 mm . In terms of the intensity I0 at the center of the central maximum, what is the intensity at the angular position of ?1?
Part D
What is the intensity at the angular position of ?2?
Part A
To determine the angular position of the interference maxima we use the following equation:
solving for ,we have
as it is for first order then m = 1
transformed d = 0.500mm to nm (d = 500000nm)
Part b
it is done the same as in part A but now m = 2
Part C
In this case d = 0.330mm.
The intensity for any is known by the following equation:
is the intensity of the waves produced if they act alone, we will take = 1.
d=0.330mm=330000nm and
Part D
In this case d = 0.330mm.
The intensity for any is known by the following equation:
is the intensity of the waves produced if they act alone, we will take = 1.
d=0.330mm=330000nm and
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