Exam 20: Light Color and Atmospheric Optics

If people possessed cone-type receptors only,then only black and white vision would be possible.​

Sundogs are caused by ____________________ of sunlight through ice crystals.​

Describe the double meaning of the expression "once in a blue moon."​

____________________ scattering is most noticeable when particles of dust,salt,or smoke are about the same size as the wavelengths of visible light (or between about 0.1 and 1 µm).​

Which processes must occur in a raindrop to produce a rainbow?

Imagine that this piece of paper is illuminated with white light and appears red.You see red light because the paper ____.

When stars appear to twinkle or flicker,it is a condition known as ____.

The sky will begin to turn milky white ____.

White light is perceived when ____ strike the cones of the eye with nearly equal intensity.

If Earth did not have an atmosphere,the sky would appear ____ during the day.

Halos are caused by ____.

A ring of light encircling the sun or moon could be either ____.

What atmospheric conditions are necessary for an inferior mirage? A superior mirage?​

We perceive light because radiant energy from the Sun travels outward in the form of ____________________ waves.​

Which event would you most likely observe over snow-covered ground in the winter?

To see a rainbow,a person must face the falling rain with the Sun at their backs.​

Volcanic eruptions rich in ____ can produce red sunsets.

A star that is cooler than our Sun appears ____.

Another name for diffuse light is ____.

Fata Morgana are most commonly seen ____.