Question 1

How does the nature of radio waves allow a radio telescope to use a wire mesh surface?

Accepted Answer

Because radio wavelengths are in the ran

Question 2

What is the relationship between color and wavelength for light?

Accepted Answer

A)  Wavelength increases from blue light to red light. 
B)  Wavelength decreases from blue light to red light. 
C)  All colors of light have the same wavelength. 
D)  Wavelength depends on intensity not color. 
A)  Wavelength increases from blue light to red light. 
B)  Wavelength decreases from blue light to red light. 
C)  All colors of light have the same wavelength. 
D)  Wavelength depends on intensity not color.

Question 3

Reflecting telescope objectives here on Earth do not have a problem with

Accepted Answer

A)  "seeing". 
B)  diffraction. 
C)  color fringes on the image. 
D)  All of the other choices are correct. 
A)  "seeing". 
B)  diffraction. 
C)  color fringes on the image. 
D)  All of the other choices are correct.

Question 4

Refracting telescopes suffer from ____________________ aberration.

Accepted Answer

The answer of Refracting telescopes suffer from ____________________ aberration....

Question 5

Why were telescopes with very large, thin mirrors not built 50 years ago?

Accepted Answer

Because a large thin mirror will sag und

Question 6

The ____________________ is a measure of how many times larger the angular size of an object appears through a telescope.

Accepted Answer

The answer of The ____________________ is a measure of how...

Question 7

The technique of connecting multiple telescopes together to combine the images from each telescope is known as

Accepted Answer

A)  aberration. 
B)  resolving power. 
C)  active optics. 
D)  adaptive optics. 
E)  interferometry. 
A)  aberration. 
B)  resolving power. 
C)  active optics. 
D)  adaptive optics. 
E)  interferometry.

Question 8

If your eyes could only see in gamma rays, what color would best describe your view of your surroundings?

Accepted Answer

A)  white 
B)  red 
C)  violet 
D)  black 
A)  white 
B)  red 
C)  violet 
D)  black

Question 9

A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely

Accepted Answer

A)  a small-diameter reflecting telescope. 
B)  a small-diameter refracting telescope. 
C)  a large-diameter refracting telescope. 
D)  a large-diameter reflecting telescope. 
E)  an infrared telescope. 
A)  a small-diameter reflecting telescope. 
B)  a small-diameter refracting telescope. 
C)  a large-diameter refracting telescope. 
D)  a large-diameter reflecting telescope. 
E)  an infrared telescope.

Question 10

The technique called _______ uses a high-speed computer to monitor atmospheric distortion and adjust the optics of a telescope to partially compensate for the seeing.

Accepted Answer

A)  photometry 
B)  chromatic aberration 
C)  active optics 
D)  spherical aberration 
E)  adaptive optics 
A)  photometry 
B)  chromatic aberration 
C)  active optics 
D)  spherical aberration 
E)  adaptive optics

Question 11

The sidereal drive of a telescope mounting must turn the telescope

Accepted Answer

A)  southward about the polar axis. 
B)  eastward about the polar axis. 
C)  westward about the polar axis. 
D)  northward about the polar axis. 
E)  None of the other choices are correct. 
A)  southward about the polar axis. 
B)  eastward about the polar axis. 
C)  westward about the polar axis. 
D)  northward about the polar axis. 
E)  None of the other choices are correct.

Question 12

What causes chromatic aberration? Why does it not occur in reflecting telescopes?

Accepted Answer

When light is refracted through glass, s

Question 13

There are _______ nanometers in one meter.

Accepted Answer

A)  1 × 103 
B)  1 × 10 − 3 
C)  1 × 109 
D)  1 × 10 − 9 
E)  400 
A)  1 × 103 
B)  1 × 10 − 3 
C)  1 × 109 
D)  1 × 10 − 9 
E)  400

Question 14

The pupil of the human eye is approximately 0.8 cm in diameter when adapted to the dark. The ratio of the light-gathering power of a 1.6-m telescope to that of the human eye is ____.

Accepted Answer

A)  2 
B)  4 
C)  20 
D)  400 
E)  40,000 
A)  2 
B)  4 
C)  20 
D)  400 
E)  40,000

Question 15

What advantages does a large-diameter astronomical telescope have over a telescope of a smaller diameter?

Accepted Answer

The ability of a telescope to collect li

Question 16

What statement below best describes the refraction of light?

Accepted Answer

A)  The absorption of light as it travels through a dense, transparent material. 
B)  The spreading out of white light according to wavelength. 
C)  The change in direction of a light ray as it passes to a medium of different optical density. 
D)  The change in direction of a ray of light as it reflects off a surface. 
A)  The absorption of light as it travels through a dense, transparent material. 
B)  The spreading out of white light according to wavelength. 
C)  The change in direction of a light ray as it passes to a medium of different optical density. 
D)  The change in direction of a ray of light as it reflects off a surface.

How does the nature of radio waves allow a radio telescope to use a wire mesh surface?

What is the relationship between color and wavelength for light?

Reflecting telescope objectives here on Earth do not have a problem with

Refracting telescopes suffer from ____________________ aberration.

Why were telescopes with very large, thin mirrors not built 50 years ago?

The ____________________ is a measure of how many times larger the angular size of an object appears through a telescope.

The technique of connecting multiple telescopes together to combine the images from each telescope is known as

If your eyes could only see in gamma rays, what color would best describe your view of your surroundings?

A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely

The technique called _______ uses a high-speed computer to monitor atmospheric distortion and adjust the optics of a telescope to partially compensate for the seeing.

The sidereal drive of a telescope mounting must turn the telescope

What causes chromatic aberration? Why does it not occur in reflecting telescopes?

There are _______ nanometers in one meter.

The pupil of the human eye is approximately 0.8 cm in diameter when adapted to the dark. The ratio of the light-gathering power of a 1.6-m telescope to that of the human eye is ____.

What advantages does a large-diameter astronomical telescope have over a telescope of a smaller diameter?

What statement below best describes the refraction of light?

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 5: Light and Telescopes

How does the nature of radio waves allow a radio telescope to use a wire mesh surface?

What is the relationship between color and wavelength for light?

Reflecting telescope objectives here on Earth do not have a problem with

Refracting telescopes suffer from ____________________ aberration.

Why were telescopes with very large, thin mirrors not built 50 years ago?

The ____________________ is a measure of how many times larger the angular size of an object appears through a telescope.

The technique of connecting multiple telescopes together to combine the images from each telescope is known as

If your eyes could only see in gamma rays, what color would best describe your view of your surroundings?

A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely

The technique called _______ uses a high-speed computer to monitor atmospheric distortion and adjust the optics of a telescope to partially compensate for the seeing.

The sidereal drive of a telescope mounting must turn the telescope

What causes chromatic aberration? Why does it not occur in reflecting telescopes?

There are _______ nanometers in one meter.

The pupil of the human eye is approximately 0.8 cm in diameter when adapted to the dark. The ratio of the light-gathering power of a 1.6-m telescope to that of the human eye is ____.

What advantages does a large-diameter astronomical telescope have over a telescope of a smaller diameter?

What statement below best describes the refraction of light?

Here and Now

A Users Guide to the Sky

Cycles of the Sun and Moon

The Origin of Modern Astronomy

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus, and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters