I\'m having trouble with problems 19-31. How do I know what type of mirror it is

Question

I'm having trouble with problems 19-31. How do I know what type of mirror it is (convex, concave, or flat) ? and if it's real or virtual? And inverted or non inverted ? And the side ? 950 Chapter 34 Images TABLE 344 Problems 19 through 31 More Mirrors. See the setup for these proble (a) INI Concave 20 Fla oo oo +10 -10 +1.0 V NT 21 RO HO +60 WT 18 +0.10 R 4.0 +24 32.44+40 NI +0,20 as the object is moved along the mirror's central axis through What index of refraction, if any, will produce a a range of values forp. What is the cation of the object at the center of the sphere? magnifi when the object is 21 cm from the mirror? 33 A glass sphere has radius 19 through 31 More mirrors, object o stands on the cen- R 5.0 cm and index of re- o mirror. For this situation, each fraction 16. A paperweight is tral axis of a spherical or plane problem in Table 34-4 refers to (a) the type of mirror, (b) the constructed by slicing through (c) the radius of curvature r, (d) the object the sphere along a plane that is distance p, (e) the image distance and the lateral 2.0 cm from the center of the nification m. (All distances are in centimeters) refers sphere, leaving height h 3.0 paperweight is placed (I) or noninverted (ND from 0, and (i on the same side of on a table and viewed from di the mirror as object Oor on the opposite side. Fill in the miss- rectly above by an observer ing information. Where only a sign is answer who is distance d 8.0 cm missing, with the from the tabletop (Fig. 34-36) Fig. 34-36 When viewed through the paperweight, how ssM 25, 31. the tabletop appear to be to the observer? sec. 34-6 Spherical Refracting Surfaces through Spherical refracting surfac .32 In Fig. 34-35, a beam of stands on the central axis of a spherical refrac parallel light rays from a laser this situation, each problem in Table 34-5 is incident on a solid transpar- refraction n1 where the object is located, ent sphere of index of refrac- refraction the other side of the refrac the object distance p, (c) the of curva tion n. (a) If a point image is produced at the back of the face, and (d) the image distance i. dist sphere, what is the index of re- Fig. 34 35 Problem 32. timeters) Fill in the missing information, i fraction of the sphere? (b) TABLE 34-5 Surfaces. See the setup for these problems. Problems 34 through 40: Spherical Refracting (e) (c) (a) Side

Explanation / Answer

Type of mirror?

If the focal length is infinity -> Plane mirror

If the focal length is positive -> Concave mirror

If the focal length is negative -> Convex mirror

Real of virtual image?

If image distance is positive -> Real image

If image distance is negative -> Virtual image

If the mirror is a convex mirror -> Virtual image (convex mirror always produces virtual image)

Inverted or non-inverted?

If magnification is positive -> Non-inverted

If magnification is negative -> Inverted

Location of image?

If image distance is positive -> infront of the mirror (same side as the object)

If image distance is negative -> Behind the mirror (opposite side as the object)

If the mirror is convex mirror -> Behind the mirror (opposite side as the object)

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