# Browsing Animations / iwp-packaged / Optics, Geometric

### apparent-depth-6.iwp

An alien on shore observes a neutrally-buoyant object (orange) in the water. The angle subtended by the refracted rays at the alien's eye is shown in yellow. The apparent position of the object is shown ..

### apparent-depth-template.iwp

An observer at upper right views a neutrally-buoyant object (orange) in the water. The angle subtended by the refracted rays at the observer's eye is shown in yellow. The apparent position of the object is ..

### least-time-6.iwp

The lower half of the screen is water, and the upper half is air. Running the animation plots paths of rays from an object in the lower left-hand corner of the screen to an observer ..

### prism-1.iwp

A ray of light is incident from air on a prism with index of refraction 1.5. Playing the animation will increase the angle of incidence in 1 degree increments. Normals to the sides of the prism are ..

### prism-3b.iwp

A ray of light is incident from air on a prism with the given index of refraction. Normals to the sides of the prism are shown in red. Playing the animation will increase the vertex ..

### prism-6.iwp

The dispersion of white light by crown glass is modeled. The index of refraction ranges from 1.513 for red light to 1.532 for violet light. Playing the animation will decrease the angle of incidence in 1 degree increments. ..

### ray-refraction-3b.iwp

The blue and gray areas represent media of different optical densities. n2/n1 is the ratio of the optical density of the gray medium to that of the blue medium. The normal to the boundary ..

### ray-refraction-3c.iwp

The blue and gray areas represent media of different optical densities. n2/n1 is the ratio of the optical density of the gray medium to that of the blue medium. The normal to the boundary ..

### ray-refraction-3d.iwp

The red line at y = 0 represents a boundary between media of different indices of refraction. The path of a light ray is shown in blue. Playing the applet forward or backwards will increase or decrease ..

### ray-refraction-3e.iwp

The red line at y = 0 represents a boundary between different media. The path of a light ray is shown in blue. Playing the applet forward or backwards will change the angle of incidence. Which ray ..

### ray-refraction-3f.iwp

The blue and gray areas represent different media. Incident, reflected, and refracted light rays in the media are shown. In which medium is the speed of light greater? How do you know? Run the applet ..

### ray-refraction-4c.iwp

The blue, red, and gray areas represent media of different indices of refraction. (The media are indexed 1,2,3 from the bottom up.) The path of a light ray is shown in yellow. The ray is incident ..

### ray-refraction-4e.iwp

The blue, red, and gray areas represent media of different indices of refraction. They are indexed 1 to 3 from the bottom up. The path of a light ray incident from the blue medium is shown in ..

### ray-refraction-4g.iwp

The blue, red, and gray areas represent different media. The path of a light ray incident from the blue medium is shown in yellow. Rank the media according to the speed of light in them. ..

### refracted-waves-3.iwp

Plane waves of constant frequency move up the screen, crossing from one medium (blue) into another (gray). The wave speed in each medium is different.

### refracted-waves-4.iwp

Plane waves of constant frequency move up the screen, crossing from one medium (blue) into another (gray). The wave speed in each medium is different.

### refracted-waves-5.iwp

Plane waves of constant frequency move up the screen, crossing from one medium (blue) into another (gray). The wave speed decreases in the upper medium. Since the frequency is constant and speed = frequency x wavelength, ..

### refraction-in-box-2.iwp

A ray of light (red) is incident from air on a transparent medium (blue box). The ray enters from the bottom of the screen. The initial angle of incidence is the smallest that it can ..

### refraction-in-box-3.iwp

A ray of light (red) is incident from air on a box filled with water (blue). The ray enters from the bottom of the screen. Play the applet. Explain why the light ray takes the ..