For
each of the following questions, choose the letter which corresponds to the
correct answer. You can reply to me by simply giving the list of your choices.
Thus:
1= the letter corresponding to your choice for the
answer to question 1
2= the letter corresponding to your choice for the
answer to question 2
etc.
Be sure
to add your full name and your student number in your reply.
Send
your reply to Judah.Levine@Colorado.edu by 11:59 pm on Wednesday, 5 December
I
will post the answers to this problem set about a day after the due date.
Tinker
bell makes an astronomical telescope using two lenses of focal lengths +50 cm
and + 10 cm.
1.
The separation between the two lenses should be
(a) 70 cm
*(b) 60 cm
(c) 50 cm
(d) 40 cm
(e) 30 cm
2.
The magnitude of the magnification will be
(a) 5 and the image is erect
*(b) 5 and the image is inverted
(c) 4 and the image is erect
(d) 4 and the image is inverted
(e) 6 and the image is erect
3.
A field lens is used
*(a) to bend rays from an intermediate
real image so that they strike a subsequent lens and brighten the final image
(b) to bend rays from an intermediate
real image so that they do not strike a subsequent lens and blur the final
image
(c) to provide additional
magnification
(d) to correct for chromatic
aberration
(e) to make it easier to focus on an
object
4. A completely saturated light beam
(a) is composed of all colors in equal
proportion
(b) is very bright
*(c) is composed of only one color
(d) is very dim
(e) appears white
5.
A monochromatic light beam
*(a) is completely saturated
(b) is completely unsaturated
(c) is very bright
(d) is very dim
(e) appears white
6. A pair of colors are complementary if
(a) they can be combined to make any
primary color
(b) they can be combined to make any
other color
(c) they can never be combined to make
white
*(d) they can be combined to make white
(e) they can be combined to make any
unsaturated color
7. The three primary colors red, green and blue
(a) can match any other color
(b) can only match colors that are
completely saturated
*(c) can only match colors that are
not completely saturated
(d) can match any other color except
purple
(e) would not be as useful as a
primary set of red, blue and yellow
8. Combinations of only red and blue
(a) produce colors that are
complementary to yellow
(b) produce colors that are
complementary to orange
(c) produce light beams that have no
well defined color
(d) produce light beams that have very
low intensity
*(e) produce colors that have no corresponding
wavelength
9. The tri-stimulus values are
(a) the amounts of red, green and blue
needed to match any color
(b) the amounts of yellow, cyan and
magenta needed to match any color
(c) the hue, saturation, and intensity
of any light beam
*(d) the amounts of three specific imaginary primary
colors needed to match any color
(e) the amounts of red, green and blue
needed to match a specific standard white color
10.
The saturation of a color specifies
(a) its wavelength
(b) its brightness as perceived by
eyes
*(c) the width of the plot of its intensity
as a function of wavelength
(d) the amount of black ink needed to
print the color
(e) the amount of magenta in the color
11. The 3 subtractive primaries are
(a) red, blue and green
(b) black, red and blue
(c) red, orange and green
(d) white, blue and yellow
*(e) cyan, magenta and yellow
12. Using the 3 subtractive primaries, we can
(a) form any completely saturated
color
(b) form any color except saturated red
(c) form any color except saturated blue
*(d) form most colors that are not too saturated
(e) form any color except saturated green