- #1
Firben
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Parallel laser light with wavelength 633 nm are incident perpendicular against a double slit. 2.50 m behind the double slit is a screen where the pattern can be seen (link below). Determine with the help of the figure the slit-with and slit-distance.
http://s716.photobucket.com/albums/ww168/Pitoraq/?action=view¤t=DSC_01821.jpg
Formulas:
Slitwith:
b = slithwith
bSin(v) = λ*m
where Sin(v) ~ v = y/L
b = (λ*L)/(y(diffmin))
Slit-distance:
d = (λ*L)/(y(max))
d = distance
How can i get y(diffmin) and y(max) out of the figure ?(ignore my measurment in the figure) The answer should be b = 0.099 mm and d = 0.30 mm
http://s716.photobucket.com/albums/ww168/Pitoraq/?action=view¤t=DSC_01821.jpg
Formulas:
Slitwith:
b = slithwith
bSin(v) = λ*m
where Sin(v) ~ v = y/L
b = (λ*L)/(y(diffmin))
Slit-distance:
d = (λ*L)/(y(max))
d = distance
How can i get y(diffmin) and y(max) out of the figure ?(ignore my measurment in the figure) The answer should be b = 0.099 mm and d = 0.30 mm