Convex Mirror - Focal Length
 1) Which of the following best describes the image formed by a convex mirror when the object distance from the mirror is less than the absolute value of the focal length (f)? Virtual, upright and reduced. Virtual, upright and enlarged. Real, inverted and enlarged. Real, inverted and reduced.

 2) When the image of an object is seen in a convex mirror the image will ____________. Always be virtual. May be either real or virtual. Always be real. Will always be magnified.

 3) An object is 14 cm in front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror? -20 cm -4.1 cm -9.9 cm -8.2 cm

 4) A convex spherical mirror has a focal length of -20 cm. An object is placed 10 cm in front of the mirror on the mirror's axis. Where is the image located? 6.7 cm in front of the mirror. 6.7 cm behind the mirror. 20 cm behind the mirror. 20 cm in front of the mirror.

 5) If R is the radius of curvature of a convex mirror, and f is its focal length, then: R = 2f R = f R = f/2 R = 3f

 6) Which one of the following is a diverging mirror? Plane mirror. Concave mirror. A shaving mirror. Convex mirror.

 7) The focal length of a convex mirror of radius of curvature 30 cm is: 10 cm 20 cm 30 cm 15 cm

 8) If the focal length of a convex mirror is 12.5 cm, its radius of curvature will be: 6.25 cm 25 cm 20 cm 30 cm

 9) Which one of the following focus is situated behind the mirror? Convex mirror Concave mirror Shaving mirror Plane mirror

 10) A convex spherical mirror has a focal length of -15 cm. The image is formed 7.5 cm behind the mirror. Where is the object located? 12.3 cm behind the mirror. 20 cm in front of the mirror. 15 cm behind the mirror. 15 cm in front of the mirror.

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