In part A of the experiment a pair of slits are illuminated with a laser and an interference pattern is observed. The slit spacing is d = 0.0001 m and the pattern is projected on to the wall a distance L= 2.23 m from the slits. From one dark spot 7 further dark spots are counted and the distance is measured to be Z = 0.097 m.Calculate the wavelength λ of the laser.Express answer in nm (1x10-9m) to the nearest whole number.

In part A of the experiment a pair of slits are illuminated with a laser and an interference pattern is observed. The slit spacing is d = (0.100 ± 0.003) mm and the pattern is projected on to the wall a distance L= (2.352 ± 0.006) m from the slits. From a dark spot 8 further dark spots are counted and the distance is measured to be Z = (12.2 ± 0.9) cm.The wavelength of the laser is calculated to be λ = 648 nm.Calculate the uncertainty in the wavelength. Express answer in nm (1x10-9m) to the nearest whole number.

Ashton and Macie are collecting measurements for their Young's Experiment lab. The separation distance between the slits is 0.0521 mm and the interference pattern is projected onto a screen located 6.71 meters from the slits. They measure a distance from the first bright band to the central bright band to be 71.7 mm. What is the wavelength (in nanometers) of the light?

A laser with a wavelength of 551 nm illuminates two narrow slits. The interference pattern from the double slits is viewed on a screen that is 1.50 m away. Over a distance of 46.0 mm there are 13.0 bright fringes with the first and last fringe situated exactly at each end of that distance. What is the spacing between the two slits?

One of Mr. Chowder's lab groups is staying after school to complete the Young's Experiment investigation. They observe that light through passing two slits travels 3.93 m to a screen to produce a pattern of bright and dark bands. The group measures the distance between the first and the second bright bands on the same side of the pattern to be 18.8 mm. The slits are spaced 0.132 mm apart. What is the wavelength (in nanometers) of the light source?Wavelengthnm

If light illuminates a double slit an interference pattern of alternating bright and dark spots is seen. The intensity of the bright spots is brighter at the centre due to the width of the slits. The bright interference fringes will be readily observed inside the broad central diffraction maximum. Outside this they will be much fainter.A laser of wavelength λ = 650 nm is shone on a pair of slits each of width a = 27 µm. The slit spacing is d = 0.3 mm. The resulting interference pattern is projected on to a screen a distance L= 2.6 m from the double slit.Counting out from the (n= 0) central bright interference fringe, how many more bright interference fringes will be seen before the intensity drops to zero at the edge of the central diffraction maximum.Express your answer to the nearest whole number.