A \(650 \mathrm{~nm}\) laser illuminates a single slit and is observed on a screen \(1.2 \mathrm{~m}\) behind the slit. The distance between the second minimum on the right and the second minimum on the left is \(11 \mathrm{~mm}\text{.}\) What is the width of the slit?
SubsectionNumerical Practice
Calculation18.8.2.Double-Slit I.
The 3rd bright fringe of a double-slit interference pattern is \(30.0 \mathrm{~cm}\) above the central bright fringe. If the angle from the horizontal (the central bright fringe) to this 3rd bright fringe is \(12.0\) degrees, what is the distance (in meters) between the double slits and the viewing screen?
A \(500 \mathrm{~nm}\) laser illuminates a double-slit apparatus with a slit separation distance of \(7.73 \mathrm{~\mu m}\text{.}\) What is the angle (in degrees) from the horizontal to the 4th bright fringe?
A \(680 \mathrm{~nm}\) laser illuminates a double-slit apparatus with a slit separation distance of \(7.83 \mathrm{~\mu m}\text{.}\) On the viewing screen, you measure the distance from the central bright fringe to the 2nd bright fringe to be \(88.2 \mathrm{~cm}\text{.}\) How far away (in meters) is the viewing screen from the double slits?
A laser of unknown wavelength is used to illuminate a single slit of width \(100 \mathrm{~\mu m}\text{.}\) A viewing screen is placed \(1.50 \mathrm{~m}\) away from the slit. A measurement between the central bright fringe and the 2nd dark fringe yields a result of \(1.95 \mathrm{~cm}\text{.}\) What is the wavelength (in nm) of the laser?
