Giancoli, Physics : Principles with Applications, 5/E Chapter 23 -- Physlet® Problems

Chapter 23: Light: Geometric Optics
Physlet® Problems

A point source is located to the left of a mirror. You can drag this point source to any position. Find the focal length of the mirror. Start

1.0 m.

1.3 m.

1.6 m.

1.9 m

An arrow shaped object is located to the left of a mirror. You can drag the tip of this object to any position. Find the focal length of the mirror. Start

More Help.

1.5 m.

1.0 m.

-1.0 m.

-1.5 m

A beam of light is incident upon a mirror. You can click-drag both the position and angle of this beam. Find the focal length of the mirror. Start

0.5 m.

0.75 m.

1.0 m.

1.25 m.

The principal rays are drawn as you click-drag the top of the arrow shaped object in the animation. Which statement is true? Start

The magnification changes sign when the tip of the arrow is dragged below the principal axis.

Virtual images always invert the object.

Light rays leaving the tip of the arrow always pass through the image.

The image of an object that is not on the principal axis can never overlap the object.

A light beam source is incident on a substance of unknown index of refraction. What is the unknown index? You can click-drag both the position and the ray angle of the beam. Angle measurements are displayed in the yellow message box if click-drag away from the source. Start

n=0.6

n=1.0

n=1.4

n=1.8

A source of light is embedded in a substance of unknown index of refraction. Where is the image located as seen by someone looking into the substance from the right? Angle measurements are displayed in the yellow message box if click-drag near a ray. Start

The image is at the point (0.8 m, 0 m).

The image is at the point (1.0 m, 0 m).

The image is at the point (1.2 m, 0 m).

The image is at the point (1.4 m, 0 m).

A light source is embedded inside an unknown substance. You can click-drag both the position and the ray-angle for this source. What is the index of refraction of the substance? Start

n=1.2

n=1.6

n=2.0

n=2.4

A light source is located to the left of a lens. You can click-drag the lens to any position. Find the focal length of the lens. Start

0.7 m

1.0 m

1.3 m.

1.6 m

An arrow shaped object is located to the left of a lens. You can drag this point object to any position. Find the focal length of the lens. Start

More Help.

-0.5 m.

-0.8 m.

-1.1 m.

-1.4 m.

Physlets used by permission of Wolfgang Christian, Davidson College. Physlet Problems ©Prentice Hall, Inc; written by Aaron Titus (North Carolina State University) and Wolfgang Christian, Davidson College.