An object is placed in front of a convex mirror. Which of the following statements about the property of image formed in front of the mirror must be correct?
(1) The image is diminished
(2) The image is virtual
(3) The image distance is smaller than the focal length of the mirror
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2), (3) only
Ans D
phy past paper 2004 II Q. 15
2007-04-20 9:38 pm
回答 (1)
2007-04-20 10:29 pm
✔ 最佳答案
With reference to the general case of object-image case below:圖片參考：http://i117.photobucket.com/albums/o61/billy_hywung/April07/Convmirror.jpg
From the diagram, we can see that the image formed by a convex mirror must be:
Virtual
Diminished
Having a distance shorter than focal length
Erect
So the answer is D.
Note: This topic, spherical mirrors, has been out of syl. in CE physics since 2005 CE exam papers.
參考: My physics knowledge
收錄日期: 2021-04-23 16:55:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070420000051KK01401