Exam 15: Light, Color, and Atmospheric Optics

You would most likely see a halo or sundog with which of the following cloud types?

The bending of light that occurs when it enters a substance of different density at an angle is called ____.

To see a sundog at sunrise, you should look toward the ____.

A cloud appears dark because it ____ more light than it ____.

How does the density of a material affect light?

Clouds appear white because the cloud droplets scatter all the visible wavelengths of sunlight about equally. This is largely due to the ____ of the cloud droplets.

The Fata Morgana is actually a(n) ____.

The ____ in the human eye allow(s) for the perception of colors in the visible light spectrum.

Haze-scattered light from a rising or setting sun produces bright lightbeams called ____.

The setting sun appears red. What can you conclude?

Where does a halo occur, and what does one look like?

The primary rainbow is produced by raindrops falling below a cloud; the secondary bow is produced by frozen precipitation.

A sky with a deep blue color indicates high humidity.

Instructions: Choose one answer from each pair of selections. To see the secondary rainbow, you should look ABOVE | BELOW the primary rainbow.

If light was not scattered in the earth's atmosphere, the sky would appear ____ during the day.

What is meant by the term dispersion?

When sunlight bounces off a surface at the same angle at which it strikes the surface, the light is ____.

Mirages, halos, and rainbows are all optical phenomena produced by the refraction of light.

Light that travels from a less-dense to a more-dense medium bends ____ the normal.

The appearance of a star to twinkle, or flicker, is caused by ____ of light through regions of different densities.