10. [-/3 Points] DETAILS SERCP11 22.1.P.005. HINT (a) How many minutes does it take a photon to travel from the Sun to the Earth? min (b) What is the energy in ev of a photon with a wavelength of 613 nm? ev (c) What is the wavelength (in m) of a photon with an energy of 1.28 ev? m11. [-/3 Points] DETAILS SERCP11 22.3.OP.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A ray of light travels through air until it strikes the interface between the air and another medium. The incident ray makes an angle of 0, = 38.0 with the normal, as shown in the figure below. Upon passage into the second medium, the ray is refracted, emerging from the interface at an angle , with respect to the normal. Air Second medium (a) Suppose that the second medium is crown glass. What is the angle of refraction, @2 (in degrees)? (Enter your answer to at least one decimal place.) (b) Suppose that the second medium is sodium chloride. What is the angle of refraction, @2, in this case (in degrees)? (Enter your answer to at least one decimal place.) (c) Finally, suppose that the second medium is ethyl alcohol. What is the angle of refraction, @2, in this case (in degrees)? (Enter your answer to at least one decimal place.)12. [-/2 Points] DETAILS SERCP11 22.3.OP.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An engineer has built a device with two plane mirrors at right angles to one another. She directs a light ray toward Mirror 1, at an incidence angle of 0, = 47.09. The light ray travels within a plane that is perpendicular to both mirrors. The ray strikes Mirror 1, as shown below, and is reflected toward Mirror 2, where it undergoes a second reflection before leaving the device. Light Mirror beam 2 1.25 m4 P Mirror (a) How far (in m) does the light ray travel between the two mirrors? m (b) With what angle of reflection, @,, measured from Mirror 2's normal line, does the ray depart Mirror 2 after the second reflection? (Enter your answer in degrees.)