An object is placed 10 cm in front of a mirror, and an image is formed that has a magnification of 2 . Which of the following statements is false?
a. The focal length of the mirror is 20 cm.
b. The image is virtual.
c. There is enough information to select the correct answer.
d. This is the only true statement.
[Ques. 2] An object is 20.0 cm from the surface of a spherical Christmas tree ornament that is 8.00 cm in diameter. What is the magnification of the image?
a. 0.091
b. 0.545
c. + 0.091
d. + 0.545
e. + 0.364
[Ques. 3] A candle is 32.0 cm in front of a convex spherical mirror of radius of curvature 68.0 cm. What are the image distance and the magnification, respectively?
a. 16.5 cm, + 0.515
b. 21.8 cm, 1.94
c. 36.0 cm, + 0.242
d. 1.9 cm, + 1.94
e. 16.5 cm, 0.515
[Ques. 4] A girl is standing in front of a concave mirror. Consider two rays of light, one from her nose and one from her mouth that are parallel as they are traveling toward the mirror. These rays will come together
a. at the focal point.
b. at the center of curvature.
c. at the image point.
d. behind the mirror if she is too close to the mirror.
[Ques. 5] Parallel rays of light that hit a concave mirror will come together
a. at the center of curvature.
b. at the focal point.
c. at a point half way to the focal point.
d. at infinity.
[Ques. 6] When the reflection of an object is seen in a convex mirror the image will
a. always be real.
b. always be virtual.
c. may be either real or virtual.
d. will always be enlarged.
[Ques. 7] When the reflection of an object is seen in a concave mirror the image will
a. always be real.
b. always be virtual.
c. may be either real or virtual.
d. will always be enlarged.
[Ques. 8] An object is held at a distance of 19.0 cm from a convex mirror creating an image that is 1/6 the object size. What is the focal length of the mirror?
a. 3.8 cm
b. 16 cm
c. 2.7 cm
d. 8.8 cm
e. 23 cm
[Ques. 9] An object placed 19.0 cm from a concave mirror produces a real image 12.7 cm from the mirror. If the object is now moved to a new position 27.0 cm from the mirror, where is the new image located as measured from the mirror?
a. 7.61 cm
b. 10.6 cm
c. 5.94 cm
d. 18.0 cm
e. 20.7 cm
[Ques. 10] A convex mirror with a focal length of 28.0 cm forms an image 11.3 cm behind the surface. If the object height is 2.00 cm what is the image height?
a. 1.19 cm
b. 3.35 cm
c. 1.35 cm
d. 2.00 cm
e. 0.807 cm
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