st diffraction minima.).

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A laser emits a beam of light with a wavelength of 500nm which is incident upon a double slit and produces an interference pattern on a screen 20 m away
Central Bright:
Bright
Double Slib
4.
B
and
Choon
3
S
107
Surean
20m
LASER
d
a) Determine the distance between the slits, a.
(Hint: Determine the spacing between the bright bands)
a =
mm
b) Determine the width of the slits, D.
(Hint: Determine the position of the first diffraction minima.)
D =
mm
Transcribed Image Text:A laser emits a beam of light with a wavelength of 500nm which is incident upon a double slit and produces an interference pattern on a screen 20 m away Central Bright: Bright Double Slib 4. B and Choon 3 S 107 Surean 20m LASER d a) Determine the distance between the slits, a. (Hint: Determine the spacing between the bright bands) a = mm b) Determine the width of the slits, D. (Hint: Determine the position of the first diffraction minima.) D = mm
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