Question 1

Explain how interferometry works.

Accepted Answer

Interferometry is a technique of connect

Question 2

The Hubble Space Telescope objective mirror is not affected by

Accepted Answer

A) bad seeing. 
B) chromatic aberration. 
C) diffraction. 
D) chromatic aberration and diffraction. 
E) bad seeing and chromatic aberration. 
A) bad seeing. 
B) chromatic aberration. 
C) diffraction. 
D) chromatic aberration and diffraction. 
E) bad seeing and chromatic aberration.

Question 3

The largest single-dish radio telescope is

Accepted Answer

A) suspended on cables in a valley. 
B) buried deep in a mine underground. 
C) orbiting in space. 
D) suspended from balloons in the upper atmosphere. 
A) suspended on cables in a valley. 
B) buried deep in a mine underground. 
C) orbiting in space. 
D) suspended from balloons in the upper atmosphere.

Question 4

_________ is absorbed by water in Earth's atmosphere and requires that telescopes for observing at these wavelengths be placed on mountain tops or in space.

Accepted Answer

A) Infrared radiation 
B) Ultraviolet radiation 
C) Radio wave radiation 
D) X-ray radiation 
E) Visible light 
A) Infrared radiation 
B) Ultraviolet radiation 
C) Radio wave radiation 
D) X-ray radiation 
E) Visible light

Question 5

Which of the waves below has the shortest wavelength

Accepted Answer

A) gamma rays 
B) X-rays 
C) visible light 
D) infrared 
E) radio 
A) gamma rays 
B) X-rays 
C) visible light 
D) infrared 
E) radio

Question 6

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 7

What is the ratio of the light-gathering power of a 10-m telescope to that of a 1-m telescope

Accepted Answer

A) 10 to 1 
B) 1 to 10 
C) 100 to 1 
D) 1 to 100 
E) 3.2 to 1 
A) 10 to 1 
B) 1 to 10 
C) 100 to 1 
D) 1 to 100 
E) 3.2 to 1

Question 8

The primary mirrors of most radio telescopes is similar to the primary mirror of a reflecting optical telescope in that

Accepted Answer

A) they are both concave in shape. 
B) they are both convex in shape. 
C) they are typically the same size. 
D) they are both made of metal. 
E) they have nothing in common. 
A) they are both concave in shape. 
B) they are both convex in shape. 
C) they are typically the same size. 
D) they are both made of metal. 
E) they have nothing in common.

Question 9

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 10

An ordinary glass lens forms an image by ____________ of light.

Accepted Answer

A) reflection 
B) refraction 
C) diffraction 
A) reflection 
B) refraction 
C) diffraction

Question 11

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 12

What is the wavelength of the longest wavelength light that can be seen with the human eye

Accepted Answer

A) 400 nm 
B) 4000 nm 
C) 7000 nm 
D) 700 nm 
E) $3×10^8$ m 
A) 400 nm 
B) 4000 nm 
C) 7000 nm 
D) 700 nm 
E) $3×10^8$ m

Question 13

A wave on a lake is found to have a wavelength of 2 m and a frequency of 0.3 Hz. What is the speed of this wave

Accepted Answer

The answer of A wave on a lake is found...

Question 14

A nanometer is

Accepted Answer

A) a unit of frequency. 
B) a unit of energy. 
C) a unit of mass. 
D) a unit of length. 
E) a unit of resolving power. 
A) a unit of frequency. 
B) a unit of energy. 
C) a unit of mass. 
D) a unit of length. 
E) a unit of resolving power.

Question 15

The main lens or mirror of a telescope is called the ____________________.

Accepted Answer

primary le

Question 16

Violet light has a wavelength of approximately _______.

Accepted Answer

A) 400 nm 
B) 4000 nm 
C) 7000 nm 
D) 700 nm 
E) $3×10^8$ m 
A) 400 nm 
B) 4000 nm 
C) 7000 nm 
D) 700 nm 
E) $3×10^8$ m

Question 17

What are sources of light pollution and how do those affect astronomical observations

Accepted Answer

Sources of light pollution are

Question 18

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 19

In which way does a photon of blue light NOT differ from a photon of red light

Accepted Answer

A) energy 
B) speed 
C) wavelength 
D) color 
E) frequency 
A) energy 
B) speed 
C) wavelength 
D) color 
E) frequency

Question 20

Interferometry

Accepted Answer

A) is used to improve the resolving power. 
B) decreases the chromatic aberration of a telescope. 
C) works only for large X-ray and ultraviolet telescopes. 
D) requires that radio telescopes be within a few hundred feet of each other. 
E) is none of the above. 
A) is used to improve the resolving power. 
B) decreases the chromatic aberration of a telescope. 
C) works only for large X-ray and ultraviolet telescopes. 
D) requires that radio telescopes be within a few hundred feet of each other. 
E) is none of the above.

Explain how interferometry works.

The Hubble Space Telescope objective mirror is not affected by

The largest single-dish radio telescope is

_________ is absorbed by water in Earth's atmosphere and requires that telescopes for observing at these wavelengths be placed on mountain tops or in space.

Which of the waves below has the shortest wavelength

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

What is the ratio of the light-gathering power of a 10-m telescope to that of a 1-m telescope

The primary mirrors of most radio telescopes is similar to the primary mirror of a reflecting optical telescope in that

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

An ordinary glass lens forms an image by ____________ of light.

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

What is the wavelength of the longest wavelength light that can be seen with the human eye

A wave on a lake is found to have a wavelength of 2 m and a frequency of 0.3 Hz. What is the speed of this wave

A nanometer is

The main lens or mirror of a telescope is called the ____________________.

Violet light has a wavelength of approximately _______.

What are sources of light pollution and how do those affect astronomical observations

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.

In which way does a photon of blue light NOT differ from a photon of red light

Interferometry

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

The Origin of the Solar System

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

Explain how interferometry works.

The Hubble Space Telescope objective mirror is not affected by

The largest single-dish radio telescope is

_________ is absorbed by water in Earth's atmosphere and requires that telescopes for observing at these wavelengths be placed on mountain tops or in space.

Which of the waves below has the shortest wavelength

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

What is the ratio of the light-gathering power of a 10-m telescope to that of a 1-m telescope

The primary mirrors of most radio telescopes is similar to the primary mirror of a reflecting optical telescope in that

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

An ordinary glass lens forms an image by ____________ of light.

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

What is the wavelength of the longest wavelength light that can be seen with the human eye

A wave on a lake is found to have a wavelength of 2 m and a frequency of 0.3 Hz. What is the speed of this wave

A nanometer is

The main lens or mirror of a telescope is called the ____________________.

Violet light has a wavelength of approximately _______.

What are sources of light pollution and how do those affect astronomical observations

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.

In which way does a photon of blue light NOT differ from a photon of red light

Interferometry

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

The Origin of the Solar System

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