Review Game
Chapter 5
Question 1
Why are most
Large Telescopes
reflectors, not
refractors?
A) Large lenses deform under their own
weight, but mirrors can be supported.
B) Large mirrors need only one optical
surface, while lenses require at least 2
surfaces to grind.
C) Reflectors do not suffer from chromatic
aberration like refractors do.
D) Large, very clear lenses are harder to
cast than more tolerant mirror blanks.
E) All of the above are correct.
Question 1
Why are most
Large Telescopes
reflectors, not
refractors?
A) Large lenses deform under their own
weight, but mirrors can be supported.
B) Large mirrors need only one optical
surface, while lenses require at least 2
surfaces to grind.
C) Reflectors do not suffer from chromatic
aberration like refractors do.
D) Large, very clear lenses are harder to
cast than more tolerant mirror blanks.
E) All of the above are correct.
Question 2
Refraction is the
tendency of light
to
1) spread around corners.
2) separate into its component colors.
3) bend through a lens.
4) disperse within a prism.
5) reflect off a mirror.
Question 2
Refraction is the
tendency of light
to
1) spread around corners.
2) separate into its component colors.
3) bend through a lens.
4) disperse within a prism.
5) reflect off a mirror.
Question 3
A primary
advantage of CCDs
over photographic
film is that
1) they do not have to be developed like
film.
2) the digital data can’t be easily stored and
transmitted.
3) the CCD is much more light sensitive
than film.
4) the CCD image can be monitored for
quality as it is being made.
5) All of the above are correct.
Question 3
A primary
advantage of CCDs
over photographic
film is that
1) they do not have to be developed like
film.
2) the digital data can be easily stored and
transmitted.
3) the CCD is much more light sensitive
than film.
4) the CCD image can be monitored for
quality as it is being made.
5) All of the above are correct.
Question 4
Radio
dishes are
large in
order to
1) give greater magnification.
2) increase their angular resolution and collect the very
weak radio photons.
3) increase the range of waves they can collect.
4) detect shorter waves than optical telescopes for
superior resolution.
Question 4
Radio
dishes are
large in
order to
1) give greater magnification.
2) increase their angular resolution and collect the very
weak radio photons.
3) increase the range of waves they can collect.
4) detect shorter waves than optical telescopes for
superior resolution.
Question 5
One design for a reflecting
telescope brings the light to
focus through a hole in the
primary mirror.
What do we call this focus?
1) Prime focus
2) Out of focus
3) Newtonian focus
4) Cassegrain focus
5) Coudé focus
Question 5
One design for a reflecting
telescope brings the light to
focus through a hole in the
primary mirror.
What do we call this focus?
1) Prime focus
2) Out of focus
3) Newtonian focus
4) Cassegrain focus
5) Coudé focus
Question 6
Which design is subject to
Chromatic Aberration?
A) refractor
B) prime focus reflector
C) Newtonian reflector
D) Cassegrain reflector
E) Gregorian reflector
Question 6
Which design is subject to
Chromatic Aberration?
A) refractor
B) prime focus reflector
C) Newtonian reflector
D) Cassegrain reflector
E) Gregorian reflector
Question 7
Which of the following radiations
can be detected by a telescope
that uses a metal antenna?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 7
Which of the following radiations
can be detected by a telescope
that uses a metal antenna?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 8
Which of the following types of
radiation can be observed with an
Earth-based telescope—but only
from a high and dry location?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 8
Which of the following types of
radiation can be observed with an
Earth-based telescope—but only
from a high and dry location?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 9
Which kind of telescope can be
used only from a space platform
or satellite?
1) Ultraviolet
2) microwave
3) Visible
4) Infrared
5) Radio
Question 9
Which kind of telescope can be
used only from a space platform
or satellite?
1) Ultraviolet
2) microwave
3) Visible
4) Infrared
5) Radio
Question 10
You observe a star with five different
“telescopes” that can “see” X, U, V, I,
and R radiations, respectively. You
want to “see” the same detail
(resolution) through each telescope.
Which will require the largest telescope
in order to do that?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 10
You observe a star with five different
“telescopes” that can “see” X, U, V, I,
and R radiations, respectively. You
want to “see” the same detail
(resolution) through each telescope.
Which will require the largest telescope
in order to do that?
1) X-ray
2) Ultraviolet
3) Visible
4) Infrared
5) Radio
Question 11
The process occurring
when photons bounce off a
polished surface is called:
A) diffraction.
B) refraction.
C) reflection.
D) dispersion.
E) interference.
Question 11
The process occurring
when photons bounce off a
polished surface is called:
A) diffraction.
B) refraction.
C) reflection.
D) dispersion.
E) interference.
Question 12
What is the resolving power
of the telescope?
A) the ability to make distant
objects appear closer
B) the ability to collect a lot of
light
C) the ability to detect very
faint objects
D) the ability to distinguish
adjacent objects in the sky
E) the ability to separate light
into its component colors
.
Question 12
What is the resolving power
of the telescope?
A) the ability to make distant
objects appear closer
B) the ability to collect a lot of
light
C) the ability to detect very
faint objects
D) the ability to distinguish
adjacent objects in the sky
E) the ability to separate light
into its component colors
.