hw 1 - gupta(sg36965 reection refraction imaging HW...

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gupta (sg36965) – reflection refraction imaging HW – yeazell – (55495) 1 This print-out should have 47 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0points An object, slanted at an angle of 45 , is placed in front of a vertical plane mirror, as shown. Mirror Which of the following shows the appar- ent position and orientation of the object’s image? 1. image 2. image 3. image 4. image 5. image 6. image 7. image 8. image 002(part1of3)10.0points An object 3 . 3 cm high is placed 18 . 4 cm from a convex mirror having a focal length of - 13 . 3 cm. Find the position of the final image. Answer in units of cm. 003(part2of3)10.0points What is the magnification? 004(part3of3)10.0points Calculate the height of the image. Answer in units of cm. 005(part1of4)10.0points An object is placed 21 . 9 cm in front of a convex mirror of focal length 50 cm. Note: Do convex mirrors have a positive or negative focal length? What is its image position? Answer in units of cm. 006(part2of4)10.0points The magnification of the image in the previ- ous question is: 007(part3of4)10.0points With the arrangement discussed above, the image is: 1. real, inverted, bigger than object 2. virtual, erect, smaller than object 3. virtual, same size as object 4. real, same size as object 5. real, erect, smaller than object 6. virtual, inverted, smaller than object 7. virtual, inverted, bigger than object
gupta (sg36965) – reflection refraction imaging HW – yeazell – (55495) 2 8. virtual, erect, bigger than object 9. real, erect, bigger than object 008(part4of4)10.0points An object is placed at 65 . 6 cm in front of this mirror. What is its image position?
009 10.0points An object is p = 38 . 2 cm in front of a concave mirror. Its real image height is 5 times larger than the object height. p h What is the radius of curvature of the mir- ror? Answer in units of cm. 010 10.0points A concave mirror with a radius of curvature of 1 . 7 m is illuminated by a candle located on the symmetry axis 3 . 7 m from the mirror. Where is the image of the candle? Answer in units of m. 011 10.0points If the speed of light through material Z is 2 . 5 × 10 8 m / s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 10 8 m / s. 012 10.0points Diamond has a high index of refraction at about 2 . 4, which helps account for its sparkle. How fast does light travel through a dia- mond? The speed of light in a vacuum is 3 × 10 8 m / s. Answer in units of m / s. 013(part1of2)10.0points

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