1. A source of yellow light ( = 570 nm) produces interference through two narrow slits separated by a distance of 0.01cm. A screen is placed 3m away. a. How far from the central max is the fifth nodal line? b. What is the distance between adjacent nodal lines? c. What is the distance between adjacent bright bands? d. How far from the central max is the second order bright band? 2. Using light of wavelength 600nm in a double slit apparatus we find Ax=0.1cm. If we use the same apparatus for light of wavelength 450nm, what is the new Ax on the screen? 3. In Young's experiment, the two slits are 0.04mm apart and the screen is located 2m from the slit. The third bright fringe is located 8.3cm from the central max a. Determine the wavelength of the source. b. Determine the wavelength of the source.