Need help with answers to this lab plz

PHY Lab #20: Wavelength of Light Name In this activity, we will use the interference of light after laser beam Use your values for d, x, and L and the expression you derived above to calculate the wavelength. Show your _m. passing through two tiny slits to measure the wavelength of the light. A laser light source is used so that the light work . waves will be coherent, that is, the same wavelength, traveling in the same direction, and in phase. m. 42 The sketch below shows coherent light of wavelength a Does your wavelength fall into the expected range for blue light? passing from left to right through a pair of slits separated by a distance d and then onto a screen, which is a distance L from the slits. This diagram is not to scale; in slits Screen reality, d and 2 are much smaller than L. Will point A on the screen be bright or dark? Why? Repeat part 2 for the green and blue lasers. You do not need to show your work : Green If the ray from the lower slit travels exactly one Blue wavelength farther than the ray from the upper slit to reach point B on the screen, will the screen be bright or dark at that point? Why? Does your wavelength for green fall into the expected range for green light? slits screen The shaded triangles to the right represent similar triangles so we can use geometry to write: Does your wavelength for blue fall into the expected range for red light? a d I So, if we can measure x, L, and d, we can calculate 2. Do so below: Go to the simulation at: http://www.physicsclassroom.com/Physics-Interactives/Light-and-Color/Youngs-Experiment/Youngs- Experiment-Interactive Part 2: Determining the wavelength of the lasers: Start with the blue laser. Use the default slit separation and distance. Record them below: m Measure the distance from the center to each of the closest bright spot by clicking on them and record the distance below