Exam 34: Images

The object-lens distance for a certain converging lens is 400 mm.The image is three times the size of the object.To make the image five times the size of the object, the object-lens distance must be changed to:

Which of the following is true of all virtual images?

If the image distance is negative,

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

Which instrument uses a single converging lens with the object placed just inside the focal point?

Real images formed by a spherical mirror are always:

A 5.0-ft woman wishes to see a full length image of herself in a plane mirror.The minimum length mirror required is:

As an object is moved from a distant location toward the center of curvature of a concave mirror its image:

An object O, in air, is in front of the concave spherical refracting surface of a piece of glass.Which of the general situations depicted below is like this situation?

When a single-lens camera is focused on a distant object, the lens-to-film distance is found to be 40.0 mm.To focus on an object 0.540 m in front of the lens, the film-to-lens distance should be:

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

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

The image produced by a convex mirror of an erect object in front of the mirror is always:

The image of an erect candle, formed using a convex mirror, is always:

A ball is held 50 cm in front of a plane mirror.The distance between the ball and its image is:

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

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:

As an object is moved from the center of curvature of a concave mirror toward its focal point its image:

The two lenses shown are illuminated by a beam of parallel light from the left.Lens B is then moved slowly toward lens A.The beam emerging from lens B is:

In a cinema, a picture 2.5 cm wide on the film is projected to an image 3.0 m wide on a screen which is 18 m away.The focal length of the lens is about: