Light with a wavelength of 690 nm is incident upon a double slit with a separation of 0.3 mm (3x10"# m). A screen is located 1.5 m from the double slit. At what distance from the center of the screen will the first bright fringe beyond the center fringe appear? The first bright fringe will appear cm beyond the center fringe. Suppose that water waves have a wavelength of 5 m and a period of 1.7 s. What is the velocity of these waves? The velocity of the waves is m/s. What is the frequency of blue light waves with a wavelength of 493 nm. The speed of light is 3 x 108 m/s. The frequency of blue light waves is x 10 4 Hz