Homework answers / question archive / University Of Arizona ATMO 170A Chapter 17 1)In its path from the top of the atmosphere to the surface of the earth, radiation undergoes which of the following? a

University Of Arizona ATMO 170A Chapter 17 1)In its path from the top of the atmosphere to the surface of the earth, radiation undergoes which of the following? a

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University Of Arizona

ATMO 170A

Chapter 17

1)In its path from the top of the atmosphere to the surface of the earth, radiation undergoes which of the following?

a.            Scattering

b.            Refraction

c.             Reflection

 

d.            All of these

2.            An inferior mirage

a.            Is made of a single degraded image

b.            Is made of 2 images, one a true image and one an inverted one

c.             Is made of 2 images, both imaginary

d.            Is made of 3 images, one a true image, and the two others are degraded replicas of the original

3.            The bright green spot that momentarily appears over a setting sun is called a

a.            Green flash

b.            Halo

c.             Sundog

d.            Superior mirage

4.            Which of the following is defined as the bending of light rays as they pass though the atmosphere

a.            Reflection

b.            Refraction

c.             Absorption

d.            Scattering

5.            When is refraction of incoming solar radiation greatest

a.            At sunrise

b.            At sunset

c.             At mid-day

d.            Both A and B

6.            Refraction occurs because radiation speed varies with (Image)

 

a.            Moisture

b.            Temperature

c.             Sunlight

d.            Density

7.            Because the index of refraction varies slightly with wavelength,

a.            White light refracts much more than black light

b.            The amount and direction of refraction is exactly the same for all colors of light.

c.             The amount and direction of refraction is slightly different for different colors of light.

d.            White light refracts much less than black light

8.            The image demonstrates

 

 

a.            Refraction

b.            Diffraction

c.             Scattering

d.            Reflection

9.            Mirages are caused by

a.            Apparent horizontal displacements of objects by refraction.

b.            Apparent horizontal displacements of objects by reflection.

c.             Apparent upward or downward displacements of objects by refraction.

d.            Apparent upward or downward displacements of objects by reflection.

10.          Near the earth's surface, vertical changes of air density with height are caused primarily by

a.            Vertical temperature gradients

b.            Horizontal temperature gradients

c.             Vertical moisture gradients

d.            Horizontal moisture gradients

11.          The figure depicts

 

a.            A superior mirage

b.            An inferior mirage

c.             A green flash

d.            A twilight mirage

12.          In a superior mirage, the false image occurs

a.            Below the actual image

b.            Above the actual image

c.             Both above and below the actual image

13.          Why does refraction occur

a.            Because the speed of radiation varies with the density of the atmosphere

b.            Because some wavelengths of light are absorbed more than others.

c.             Because the greater the denser, the greater the reflectivity of visible light.

d.            None of these are correct

14.          Twilight is caused by

a.            Diffraction

b.            Negative albedo

c.             Scattering

d.            Absorption

 

15.          A superior image

a.            Forms when there is one largest image in a group of images.

b.            Forms when one image is an exact replica of a true feature.

c.             Forms when images are displaced upward.         

d.            all of these

16.          A difference in air density can cause

a.            Reflection

b.            Scattering

c.             Absorption

d.            Refraction

17.          Being able to see the sun before it rises or just after it sets is due to

a.            Refraction

b.            Reflection

c.             Scattering

d.            Absorption

18.          A refraction pattern in which rays are bent concave upward can be caused by

a.            A steady, steep drop in temperature with height

b.            Strong winds

c.             Low clouds

d.            Increased moisture

19.          Mirages are caused by

a.            Reflection

b.            Refraction

c.             Scattering

d.            Absorption

20.          If the density of the atmosphere decreases with height, then a distant building would appear

                than it really is

a.            Wider

b.            Shorter

c.             Thinner

d.            Taller

21.          Which of the following is not associated with an inferior mirage

a.            Steep temperature differences near the surface

b.            Increasing density with height in the atmosphere

c.             The “puddle” of water on the road

d.            Reflection and refraction of raindrops

22.          Which of the following are not associated with a superior mirage

a.            Images that are displaced upward

b.            Decreasing density with height in the atmosphere

c.             Warm air that moves over cooler water surfaces

d.            Diffraction occurring in cirrus clouds

23.          Under most circumstances the density  with increasing altitude

a.            Increases

b.            Decrease

24.          A mirage that forms with warm are above cool water surface is

a.            An inferior mirage

b.            A twilight mirage

c.             A desert mirage

 

d.            A superior mirage

25.          Where are rainbows located

a.            Always in the part of the sky opposite from the sun

b.            Always in the center of the sky

c.             Always just above the horizon

d.            Always in the same part of the sky as the sun

26.          How many degrees of arc does a primary rainbow extend a. 110

b.            30

c.             85          

d.            45

27.          What types of clouds help produce halo when the sun shines through them?

a.            Cumulonimbus

b.            Cirrostratus

c.             Stratus

d.            Altocumulus

28.          The brightest and most common rainbows are

a.            Moonbows

b.            Primary rainbows

c.             Glories

d.            Secondary rainbows

29.          The optics of rainbow formation involve

a.            Reflection only

b.            Refraction only

c.             Both reflection and refraction

d.            Neither

30.          A primary rainbow requires

a.            No reflection within a raindrop

b.            Two reflections within a raindrop

c.             A single reflection within a raindrop

d.            Three reflections within a raindrop

31.          The figure depicts the formation of a

 

a.            Secondary rainbow

b.            Green flash

c.             Primary rainbow

 

d.            Glories

32.                         are formed by the interaction of light with ice crystals

a.            Secondary rainbows

b.            Primary rainbows

c.             Glories

d.            Haloes

33.          Sundogs form when platelike ice crystals

a.            Melt while falling

b.            Orient themselves vertically

c.             Tumble while falling

d.            Orient themselves horizontally

34.          Sun pillars form when    oriented plaelike ice crystals       light

a.            Vertically; refract

b.            Horizontally; reflect

c.             Vertically; reflect

d.            Horizontally; refract

35.          The optical effect in the figure is

 

a.            A halo

b.            A sundog

c.             A glory

d.            A sun pillar

36.          The optical effect in the figure is

 

a.            A halo

b.            A green flash

c.             A glory

 

d.            A sundog

37.          The optical effect in the figure is

 

a.            A sun pillar

b.            A sun dog

c.             A glory

d.            A corona

38.          The optical effect in the figure is

 

a.            A glory

b.            A corona

c.             A sundog

d.            A sun pillar

39.          Sundogs

a.            Occur only in latitudes close to the poles

b.            Are formed by refraction caused by water droplets

c.             Occur only with low clouds

d.            Are formed by refraction caused by ice crystals

40.          Which of the following are necessary for rainbows to appear

a.            Rain falling at some distance away

 

b.            Clear sky above the viewer

c.             All of these

41.          Halos are associated with

a.            Thunderstorms

b.            Stratus clouds

c.             Cumulus clouds

d.            Cirrostratus clouds

42.          The occurrence of a halo tells you that

a.            The ice crystals are columnar in shape and are tumbling while they fall

b.            The ice crystals are columnar is shape and are horizontally-oriented as they fall

c.             The ice crystals are platelike in shape and are tumbling while they fall

d.            The ice crystals are platelike in shape and are horizontally-oriented as they fall

43.          The occurrence of a sundog tells you that

a.            The ice crystals are columnar in shape and are tumbling while they fall

b.            The ice crystals are platelike in shape and are tumbling while they fall

c.             The ice crystals are platelike in shape and are horizontally-oriented as they fall

d.            The ice crystals are columnar is shape and are horizontally-oriented as they fall