Fill in the blanks. 1. As the screen is moved farther from the slits, the distance between the bands. 2. As the screen is moved closer to the slits, the distance between the bands. 3. As the slits move closer to each other, the distance between the bands 4. As the slits move farther from each other, the distance between the bands 5. As the wavelength of the source increases, the band separationActivity 2: Practice Problems Solve the following problems. Write the given, formula and solution. Show your complete solution. 1. Monochromatic light 1 =500nm passes through two slits and onto a screen 3m away. If two nearby bright fringes are separated by 10 mm, what is the slit spacing? 2. Two slits are separated by 0.25 mm and are used to perform a double-slit experiment with a screen 1.0 m away from the slits. If the distance between a dark region and the nearest bright spot on the screen is 1.5 mm, what is the wavelength? 3. Greenlight (1 = 550 mm) is used in Young's double-slit experiment with the slits separated by a distance of d = 0.15 mm. The screen is located at a distance of L = 2.5 m from the slits. Find the distance y on the screen between the central bright fringe and the "fourth-order" bright fringe. Activity 3: Problem Solving Complete the table below. Show your complete solution. (Note: convert the units into m) h L A d 5m 500nm 0.5mm 2 2mm 650nm 1mm 3 3mm 2m 0.2mm A 4mm 3m 600nm 5mm 700nm 0.3mmActivity 1: Light Plus Light Equals Dark Materials: Laser pointer Lice comb (or, not quite as good, an eyelash comb with narrowly spaced metal teeth) black tape white screen or 5 x7 - inch index card . two large binder clips, 1 inch (2.5 cm) wide, 2 inches (5 cm) long two medium binder clips, 12 inch (1cm) wide, 1 inch (2.5 em) long a single-edge razor blade or straight-edge knife Procedure: 1. Use the black tape to cover the teeth on the lice comb, leaving only two slits between adjacent teeth. 2. Insert the handle of the comb into a large binder clip and set the clip on its side or another flat surface so the teeth of the comb are vertical. 3. Clip the two medium binder clips to the barrel of the laser and position them so the laser pointer rests horizontally. 4. Attach the remaining large binder clip to the index card so that it creates a stand for the card. 5. Set up the laser pointer and comb so that the laser beam shines through the two open slits on the comb onto the white screen. Position the screen at least 4 feet (1.5 meters) from the two slits. https://www.exploratorium.edu/ sites/default/files/TwoSlitExp_DSC_4793_P960.jpg Guide Questions: 1. Turn on the laser pointer. What is formed on the distant screen? 2. Explain the formation of bright and dark bands on the screen. 3. Move the screen closer and farther from the sources. Observe the changes in the pattern which is projected onto the screen, Complete the following sentences. A. As the screen is moved farther from the slits, the distance between the bands (increases, decreases, remains the same). B. As the screen is moved closer to the slits, the distance between the bands (increases, decreases, remains the same). C. The band separation distance (y) and the slit-to-screen distance (L) are (directly, inversely) related