Exam 34: Images

A convex spherical surface with radius r separates a medium with index of refraction 2 from air. As an object is moved toward the surface from far away along the central axis, its image:

A concave refracting surface of a medium with index of refraction n produces a real image no matter where an object is placed outside:

A point source is to be used with a concave mirror to produce a beam of parallel light. The source should be placed:

An erect object is in front of a convex mirror a distance greater than the focal length. The image is:

An erect object is located between a concave mirror and its focal point. Its image is:

Where must an object be placed in front of a converging lens in order to obtain a virtual image?

A student sets the cross-hairs of an eyepiece in line with an image that he is measuring. He then notes that when he moves his head slightly to the right, the image moves slightly to the left (with respect to the cross-hairs). Therefore the image is:

The term "virtual" as applied to an image made by a mirror means that the image:

A plane mirror is in a vertical plane and is rotating about a vertical axis at 100 rpm. A horizontal beam of light is incident on the mirror. The reflected beam will rotate at:

Which of the following is true of all virtual images?

A 3-cm high object is in front of a thin lens. The object distance is 4 cm and the image distance is -8 cm. The image height is:

At what distance in front of a concave mirror must an object be placed so that the image and object are the same size?

An erect object placed outside the focal point of a converging lens will produce an image that is:

An object is 2 m in front of a plane mirror. Its image is:

When you stand in front of a plane mirror, your image is:

Which of the following five glass lenses is a diverging lens?

A convex spherical mirror has a focal length of 12 cm. If an object is placed 6 cm in front of it the image position is:

The figure shows a concave mirror with a small object located at the point marked 6. If the image is also at this point, then the center of curvature of the mirror is at the point marked:

An ordinary magnifying glass in front of an erect object produces an image that is:

Let p denote the object-lens distance and i the image-lens distance. The image produced by a lens of focal length f has a height that can be obtained from the object height by multiplying it by: