In Young's double slit experiment:
d=2 mm, D=10 m, λ=6000 Å
The point in front of one slit is at y=2d from the central axis.
I=4I0cos2(λDπdy)
=4I0cos2(6000×10−10×10π×2×10−3×1×10−3)
=4I0cos2(3π)=4I0×41=I0
In the Young's double slit experiment the intensity produced by each one of the individual slits is I0. The distance between two slits is 2 mm. The distance of screen from slits is 10 m. The wavelength of light is 6000 A∘. The intensity of light on the screen in front of one of the slits is ____.
Held on 24 Jan 2026 · Verified 6 Jul 2026.
2Io
2Io
4Io
Io
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