Final Exam Part 2 (Ch 22-25)

For which one of the following circuit arrangements will the power factor be nonzero? A) a capacitor in series with an ac generator B) an inductor in series with an ac generator C) two capacitors in series with an ac generator D) a capacitor and resistor in series with an ac generator E) a capacitor and inductor in series with an ac generator

D

A concave mirror has a radius of curvature of 20 cm. For which one of the following object distances will the image be real, inverted and smaller than the object? A) 5 cm B) 10 cm C) 15 cm D) 18 cm E) 25 cm

E

An object is placed in front of a concave spherical mirror as shown below. The three rays 1, 2, and 3, leave the top of the object and, after reflection, converge at a point on the top of the image. Ray 1 is parallel to the principal axis, ray 2 passes through F, and ray 3 passes through C. Which ray(s) will pass through F after reflection?

a

Which one of the following statements concerning the image formed by a concave spherical mirror is true? A) When the object distance is less than the focal length, the image is virtual. B) When the object distance is larger than the focal length, the image is virtual. C) When the object is at the center of curvature, the image is formed at infinity. D) When the object distance is less than the focal length, the image is inverted relative to the object. E) When the object distance is larger than the focal length, the image is upright relative to the object.

a

Which one of the following statements concerning a convex mirror is true? A) A convex mirror can form a real image. B) A convex mirror must be spherical in shape. C) The image produced by a convex mirror will always be inverted relative to the object. D) A convex mirror produces a larger image than a plane mirror does for the same object distance. E) The image a convex mirror produces is closer to the mirror than it would be in a plane mirror for the same object distance

e