Light For all word problem: do GUESS 1. Light goes from diamond in = 2.419] at an angle of 15 degrees into some unknown substance. What is the index of refraction of the substance If the angle of refraction is 25 degrees? \"ihat is the speed of light in sapphire where the index of refraction is 1363? Which Index of refraction Is bigger? How do you know? ? [n which medium light travels faster? A convex mirror produces a 5 Inch image of a ? inch object. What is the magnication? 5. What is. the focal length at the mirror? I51] {In {will} cm I". I|.|".I'hat is. the focal length of the lens? Image Object I P 15 cm 8. What is the focal length of the lens? 50.0 cm 10.0 cm 9. What is the focal length of the lens? f =? 1.50 m 0.75 m10. A student puts a hand up in front of a plane minor [this is like the mirror 'll'DU look into in the morning: as shown In the diagram. Four possible observations are shown in the table below. Which observation correctly describes the image of the hand ? Students' Responses 'res {larger} 'res {smaller} Same as the distance of the object from the surface Farther then the distance of the object from the surface Farther than the distance of the object them the surface Same as the distance of the object from the surface