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Multiple choice
In a double-slit experiment, light of wavelength
λ
=
500
\lambda = 500
λ
=
500
nm illuminates slits separated by
d
=
0.25
d = 0.25
d
=
0.25
mm. On a screen at distance
L
=
1.0
L = 1.0
L
=
1.0
m, the fringe spacing is
Δ
y
=
λ
L
/
d
\Delta y = \lambda L/d
Δ
y
=
λ
L
/
d
. What is
Δ
y
\Delta y
Δ
y
in millimeters?
🔬 try it before you answer
0.5 mm
2 mm
8 mm
1.25 mm
Check answer