A man holds a rectangular card in front of and parallel to a plane mirror. In order for him to see the entire image of the card, the least mirror area needed is: A. that of the whole mirror, regardless of its size B. that of the pupil of his eye C. one-half that of the card D. one-fourth that of the card Е. an amount which decreases with his distance from the mirror

The image formed by a flat mirror has the following properties: 1. 2.

Please help me with number 23

8. The image of an object is 11.5 cm behind a convex mirror when the object is far from the mirror. (a) Determine the absolute value of the distance from the mirror to the image when the object is placed 3.2 cm in front of the mirror.                       cm

20

Which two of the following statements are true? Select one or more: a. In the plane mirror the image is symmetrical with the object. b. An apparent image of the object can only be seen in the plane mirror. c. The real image of the object can only be seen in the plane mirror. Od. In the plane mirror the image is reduced in comparison of the object. e. In the plane mirror the image is magnified in comparison of the object f. The image does not appear in the plane mirror. g. In the plane mirror the image is asymmetrical in comparison of the object. U

A woman is 2 m tall, with her eyes at a height of 1.83 m. A mirror is on the wall, ending somewhat higher than her head. What is the highest point above the floor the bottom of the mirror can be so that she can still see her feet? You Answered 0.557 Correct Answer 0.915 margin of error- 1%

Q17

20. In E111, the object is placed in front of a convex mirror, at an object distance equal to the magnitude of the focal length.  Which of the following is the image formed?     The image is half as large as the object and located at twice the object’s distance behind the mirror.     The image is half as large as the object and located at half the object’s distance behind the mirror.     The image is twice as large as the object and located at half the object’s distance behind the mirror.     The image is twice as large as the object and located at twice the object’s distance behind the mirror.

An object is placed 15 cm from a concave mirror of focal length 8.0 cm. The object is 5.0 cm tall and the image is -5.71 cm tall. From what is found, the image is: A.Upright B. Inverted C. Bigger D. Smaller E. Same size F. Real G. Virtual