Meteorology chapter 15

Which of the following statements about the green flash is FALSE? Under normal conditions it is too faint to be seen with the human eye it is magnified by the atmosphere when the surface air is very hot or when an upper level inversion exists the best time to see it is around noon when the sun's rays are most intense it usually last only about a second it is seen near the upper rim of the sun

the best time to see it is around noon when the suns rays are most intense

T/F- the refraction of sunlight by the atomosphere causes the sun to rise about two minutes later and set about two minutes earlier than it would otherwise

F

If you were standing on the moon, which has no atmosphere, the color of the sky at sunset would be ___

black

Which of the following physical processes is responsible for a corona?

diffraction

Which of the following physical processes is responsible for cloud iridescence?

diffraction

Which of the following processes is repsonble for a corona

diffraction

T/F- The Fata Morgan is a type of inferior mirage.

f

T/F- The Heiligenschein is most easily seen at night

f

T/F- Light that travels from a less dense to a more dense medium gains speed and bends away from the normal

false

Which of the of the following statments about inferior and superior mirages are FALSE?

objects often appear inverted in a superior mirage

As light passes through ice crystals, ____ light is bent the least and is, therefore, observed on the __________of halos and sundogs.

red, inside

Which of the following physical processes is responsible for a sun pillar?

reflection

Which of the following physical processes is responsibel for a sundog?

refraction

Which of the following physical processes is responsible for a halo?

refraction

When distant mountains appear blue, it is mainly due to which of the following?

scattering

Which of the following physical processes is responsible for blue skies?

scattering

Which of the following physical processes is responsible for crepuscular rays?

scattering

Which of the following physical processes is responsible for white clouds

scattering

T/F- If the setting sun appears red only the longest waves of visible light are striking your eye.

t

T/F- In a rainbow, we see only a single color from each drop

t

T/F- Secondary rainbows are weaker than primary rainbows and are caused by two internal reflections of light in raindrops

t

T/F- The apparent twinkling of a star, called "scintillation", is caused by the bending of the starlight as it passes through regions of differing air density in our atmosphere

t

T/F- The apparent wet pavement above a road is similar to the mirage that occurs in the desert during the hot summer. both are real physical processes resulting from refraction.

t

Which of the following statements is false? A halo results from refraciton of sunlight through ice crystals. Sundogs result from refraction of sunlight through ice crystals Sun pillars result from refraction of sunlight off ice crystals the 46 degree halo is more common than the 22 degree halo halos, sundogs, and sun pillars indicate the presence of cirriform clouds.

the 46 degree halo is more common than the 22 degree halo