An object is 23.0 cm in front of a lens of focal length -17.0 cm. (10) What is the image distance? (A) 8.78 cm; (B) 9.78 cm; (C) –9.78 cm; (D) -8.78 cm; (E) –7.78 cm. (11) What is the magnification? (A) 0.425; (B) 0.525; (C) 0.625; (D) 0.725; (E) 0.825. (12) If a convex spherical mirror of radius 26.0 cm is placed 10.0 cm behind the lens, what is the image distance from the mirror, with the rays going through the lens once and reflected from the mirror? (A) 7.84 cm; (B) 8.84 cm; (C) –8.84 cm; (D) –7.84 cm; (E) –6.84 cm.
An object is 23.0 cm in front of a lens of focal length -17.0 cm. (10) What is the image distance? (A) 8.78 cm; (B) 9.78 cm; (C) –9.78 cm; (D) -8.78 cm; (E) –7.78 cm. (11) What is the magnification? (A) 0.425; (B) 0.525; (C) 0.625; (D) 0.725; (E) 0.825. (12) If a convex spherical mirror of radius 26.0 cm is placed 10.0 cm behind the lens, what is the image distance from the mirror, with the rays going through the lens once and reflected from the mirror? (A) 7.84 cm; (B) 8.84 cm; (C) –8.84 cm; (D) –7.84 cm; (E) –6.84 cm.
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Transcribed Image Text:An object is 23.0 cm in front of a lens of focal length -17.0 cm.
(10) What is the image distance?
(A) 8.78 cm; (B) 9.78 cm; (C) –9.78 cm; (D) -8.78 cm; (E) -7.78 cm.
(11) What is the magnification?
(A) 0.425; (B) 0.525; (C) 0.625; (D) 0.725; (E) 0.825.
(12) If a convex spherical mirror of radius 26.0 cm is placed 10.0 cm behind the lens, what
is the image distance from the mirror, with the rays going through the lens once and
reflected from the mirror?
(A) 7.84 cm; (B) 8.84 cm; (C) –8.84 cm; (D) –7.84 cm; (E) -6.84 cm.
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