Physics Principles and Problems 2009

Section 18.3 : Applications of Lenses

Self-Check Quizzes

1
In what part of the eye is light primarily focused?
A)lens
B)optic nerve
C)cornea
D)retina
2
What is happening in the condition called hyperopia?
A)The image is focused past the retina.
B)The image is focused in front of the retina.
C)The lens is not able to focus the images.
D)The cornea has lost its ability to focus images.
3
What is a function of the prisms in binoculars?
A)separate wavelengths of light
B)invert the image
C)increase the focal length
D)reduce aberration
4
Why would a camera use an achromatic lens?
A)to focus on far away objects
B)to reduce spherical aberration
C)to reduce chromatic defect
D)to filter out light with too much intensity
5
In a microscope, what is the object for the eyepiece?
A)the subject being studied
B)the light source
C)the image from a prism
D)the image from the objective lens
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.