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Exam 34: Images

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Question 41

Multiple Choice

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Which of the following is NOT correct for a simple magnifying glass?

A) the image is virtual
B) the image is erect
C) the image is larger than the object
D) the object is inside the focal point
E) the lens is diverging

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Question 42

Multiple Choice

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

A) Camera
B) Compound microscope
C) Magnifying glass
D) Overhead projector
E) Telescope

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Question 43

Multiple Choice

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A converging lens of focal length 20 cm is placed in contact with a diverging lens of focal length 30 cm. The focal length of this combination is:

A man holds a rectangular card in front of and parallel to a plane mirror. In order for him to see the entire image of the card, the least mirror area needed 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:

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:

A man stands with his nose 8 cm from a concave shaving mirror of radius 32 cm. The distance from the mirror to the image of his nose is:

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

A parallel beam of monochromatic light in air is incident on a plane glass surface. In the glass, the beam:

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

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:

A candle C sits between two parallel mirrors, a distance 0.2d from mirror 1. Here d is the distance between the mirrors. Multiple images of the candle appear in both mirrors. How far behind mirror 1 are the nearest three images of the candle in that mirror?

The Sun subtends 0.5 $\degree$ as seen from the Earth. Its image, using a 1.0-m focal length lens, is about:

An erect object is placed on the central axis of a thin lens, further from the lens than the magnitude of its focal length. The magnification is +0.4. This means:

A virtual image is one:

A convex spherical refracting surface separates a medium with index of refraction 2 from air. The image of an object outside the surface is real:

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:

A plano-convex glass (n = 1.5) lens has a curved side whose radius is 50 cm. If the image size is to be the same as the object size, the object should be placed at a distance from the lens of:

Consider the following four statements concerning a compound microscope: Which two of the four statements are correct?