Saturday, May 22, 2010

Physics lens and light?

The image formed by a convex spherical mirror will always be


A. inverted and smaller than the object.


B. upright and smaller than the object.


C. inverted and larger than the object.


D. upright and larger than the object.





A virtual image produced by a lens is always


A. larger than the object.


B. smaller than the object.


C. located in front of the lens.


D. located in the back of the lens.





Rays of light incident on a lens and parallel to the principal axis of the lens converge


A. at the center of curvature of the lens.


B. at the focal point of the lens.


C. in front of the lens.


D. in back of the lens.





When the image of a distant object is brought into focus in front of a person's retina, the defect is called


A. nearsightedness.


B. farsightedness.


C. chromatic aberration.


D. spherical aberration.

Physics lens and light?
1.B


2.C


3.B


4.A
Reply:1 B


2 D


3 B


4 A


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