When Light Strikes a Shiny Surface, Much of It Is $\theta$

question 68

Multiple Choice

When light strikes a shiny surface, much of it is reflected in the direction shown.However some of it may be scattered on either side of the reflected light.If the intensity (brightness) of the scattered light at the angle $\theta$ (shown in the picture) is I, the Phong model says that $I=k \cos ^{n}(\theta)$ where k and n are positive constants depending on the surface.Thus this function gives an idea of how "spread-out" the scattered light is.What effect does decreasing the parameter n have of the graph of I?

• A)The graph drops less quickly
• B)The graph stretches upward
• C)The graph shrinks downward
• D)The graph drops more quickly

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Definitions:

Sternum

The long, flat bone located in the center of the chest, connected to the rib bones by cartilage, commonly known as the breastbone.

Spongy Bone

A type of bone tissue that is characterized by its porous, honeycomb-like structure, found at the ends of long bones and in the inner layer of flat bones.

Red Bone Marrow

The soft tissue inside bones that produces blood cells.

Compact Bone

Dense and hard outer layer of bone tissue that provides strength and protection.