Friday, July 31, 2009

Physics questions?

The image formed by a convex mirror:


a) is always virtual and smaller than the object


b) is always virtual and larger than the object


c)is always real and smaller than the object


d) may be real or virtual





A ray of light leaving a source placed at the focus of a converging lens passes through the lens and then:


a)emerges parallel to the principal axis


b) enters the focus on the other side of the lens


c) continues in its original direction


d) is refracted away from the principal axis





A ray of light passing through the center of a thin diverging lens:


a) passes through without much change of direction


b)passes into the focus of the lens


c) is strongly refracted towards the principal axis


d) is strongly refracted away from the principal axis

Physics questions?
1.a





2.a





3.a


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