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Physics: Light wavelength in a slit experiment.

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Two slits are 0.0190mm apart. A screen is 0.60m away. The separation between the central bright line and the first order bright line is 21.1mm. What is the wavelength of the light?

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Solution Preview

There's one simple equation to use for this problem.

Wavelength = (distance between bright lines x distance between slits) / distance from slits to screen.

So what information do we have?

Distance between bright lines (w) = 21.1mm
Distance between slits (s) = 0.019mm
Distance from slits ...

Solution Summary

The expert examines light wavelengths in a slit experiment.