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a double-slit experiment is performed with blue-green light of wavelength of 512nm. the slits are 1.2mm apart and the screen is 5.4m from the slits. how far apart are the bright fringes as seen on the screen?

Salman khan , 7 Years ago
Grade 12th pass
anser 1 Answers
Arun
Dear Salman
 
Given: λ =512 nm
d = 1.2 mm
D= 5.4 m
Fringe width Δy=?
Solution:
Fringe width= Δy = λD/d =
(512x 10-9m)(5.4 m)=(1.2 x 10-3m)
=2.3 x 10-3 m
 
Regards
Arun (askIITians forum expert)
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Last Activity: 7 Years ago
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