why is this solution wrong for finding one specific dark spot or minimum and why answer is smaller that this

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why is this solution wrong for finding one specific dark spot or minimum and why answer is smaller that this
HW#3
=650 hm
6 = d = 0./mm = 0.1x10-3m
D= 2m
5th onder intece maximum over laps on finst
onder diffretion mininum
Condition of diffction minimum in
Fnounheter daele slit diftrection
a sam o =
equition o
Transcribed Image Text:HW#3 =650 hm 6 = d = 0./mm = 0.1x10-3m D= 2m 5th onder intece maximum over laps on finst onder diffretion mininum Condition of diffction minimum in Fnounheter daele slit diftrection a sam o = equition o
Coherent red light (wavelength 650 nm) is shined on a
Young's Double Slit Apparatus. What slit size gives a
5th order interference bright fringe at the first diffraction minimum on
a view screen 2 meters away from the slits? Suppose the slit separation is 0.1 mm.
interterence marimum in Fraunhoter donbl shit
diftnadion
Chintlo o
Pa eguaton O
(a+b).sin d
a + b
a+ b =
9.
0.J mm
O.025 mm
4.
Here we
slit size must bu
a=0.025mm 0.025 X103 m=0.000025 m
Transcribed Image Text:Coherent red light (wavelength 650 nm) is shined on a Young's Double Slit Apparatus. What slit size gives a 5th order interference bright fringe at the first diffraction minimum on a view screen 2 meters away from the slits? Suppose the slit separation is 0.1 mm. interterence marimum in Fraunhoter donbl shit diftnadion Chintlo o Pa eguaton O (a+b).sin d a + b a+ b = 9. 0.J mm O.025 mm 4. Here we slit size must bu a=0.025mm 0.025 X103 m=0.000025 m
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