51 PHYSICS I REFLECTION PROBLEMS Solve the following problems using the examples given in your Reflection hand out. Show all steps of all formulas! Calculations may be done in pencil, but answers in the blanks should be in ink. Remember: NO NAKED NUMBERS! 1. Bova and DeHaan are in a house of mirrors at the county fair. Bova comes to two mirrors situated at an angle of 90. Bova stands so that light shining on his face is incident on one mirror at an angle of 50. At what angle from the mirror will DeHaan need to stand in order for Bova to see him? (1pt) 1A "500 2. A popular lawn ornament in the 1960s was a colord reflecting sphere that sat in the yard as a decoration. A) If a bird is 10.0 cm from a blue reflecting sphere and sees its image reflected 5.0 cm behind the sphere, what is the focal length of the spherical reflector? B) Would the bird's image appear larger or smaller than the bird itself? (6 pts) 2A 2B 3. Ashley applies her mascara while looking in a concave mirror whose focal length is 18 cm. A) How far is Ashley's image from the mirror? B) Does it matter whether or not Ashley's face is closer or farther than one focal length? Explain. (8pts) 3A 3B 4.A friend is wearing a pair of mirrored sunglasses whose convex surface has a focal length of 20.0 cm. If your face is 40.0 cm from the sunglasses, how far behind the sunglasses is your image? (5 pts)5. While decorating his Christmas tree, Matt discovers that he can see his reflection in a Christmas ornament. A) If Matt looks into the ornament from a distance of 20.0 cm and focuses on his reflection 4.0 cm behind the ornament, what is the focal length of the ornament? B) Is Matt's image upright or inverted? C) Is his image larger or smaller? (7 pts) 5A. 5B 5C. 6.Paul stand in his hotel in Cancun and admires his tan in a mirror that allows him to look "larger than life." A) If the mirror has a focal length of 75.0 cm and Paul stands 50.0 cm from the mirror's surface, how far behind the miror is his image? B) What type of mirror is he using? (6 pts) 6A. 6B