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If a spherical mirror is immersed in water, does its focal length change? Explain.

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4. A section of a sphere is mirrored on both sides. If the magnification of an object is +4.00 when the section is used a concave mirror, what is the magnification of an object at the same distance in front of the convex side? ISS f60 ssfor ssf60 ³$ 09: ) ssf60 ss
1. A dentist examines the cavity in a person's tooth using a concave mirror of focal length +2.0 cm. If the cavity is 1.5cm from the mirror's surface, (a) where is the image located, (b) is it real or virtual, and @ what is its size? 2. The observation mirror in a store is a convex mirror and has a focal length of -2m. Calculate (a) the image location and (b) the image height of a 1.5 m-tall boy standing 4.0 m from the mirror. 3. A 1.6 m-tall man stands in front of a plane mirror, How tall is the image form? Useful formulae: where: = 1/d, + 1/d, f- focal length do- distance of object from mirror di- distance of image from h'- size/height of image h- size/height of object h' = -hd,/d.
8. A shopper standing 3.00 m from a convex security mirror sees his image with a magnification of 0.250. (a) What is the focal length of the mirror? (b) What is its radius of curvature?|
1. Suppose a man stands in front of a mirror as shown in Figure. His eyes are 1.95 m above the floor, and the top of his head is 0.18 m higher. (a) Find the length of the smallest mirror in which he can see both the top of his head and his feet and its height above the floor. Length of the mirror: Height from floor to bottom of mirror: Height from floor to top of mirror: m m m
8. A painter stands 5 m in front of a 2 m long mirror in a rectangular room. 2 m long mirror 5m 8 m painter Painted wall 12 m How much of the painted wall can he see through the 2 m long mirror? A 3.2 m B 3.8 m C 5.2 m D 12 m
If you look into the bowl of a metal spoon, you see yourself up- side down. Flip the spoon so you're looking at the back side, and now you're right-side up. Explain.
15. An object is placed at a distance xo =-1.5f in front of a convex lens of focal length f located at x = 0. An identical object is placed at a distance x'o = -2f in front of a concave lens of focal length - f located at x' = 0. Find the difference between the two image positions (x' - Xi). Draw ray diagrams.
Which of the following statements must be true for a single convex mirror system? 1. It only forms a virtual image. II. f f and |s'| < s IV. s'< f depends on the location of the object O I and II OI, II, and IV O I and II OI, II, and III O l only
9. A person stands 1.75 m away from the reflecting surface of a plane mirror. (a) What is the distance between the person and his or her image? 19 o0 of19 9 oofls pof19 of
1) A piece of thin spherical shell that has a radius of curvature of 145 cm is silvered on both sides. The concave side of the piece forms a real image 500 cm from the mirror. The piece is then turned around so that its convex side faces the object. The piece is moved so that the image is now 30 cm from the piece on the concave side.
11) An object is 12 cm in front of a convex spherical mirror, and the image is 3.0 cm behind the mirror. What is the focal length of the mirror?
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