Download Practice Quiz 4

Name: ______________________
ID: A
____ 12. The technique of connecting multiple telescopes together to combine the images from each telescope is
known as
a. abberation.
b. resolving power.
c. active optics.
d. adaptive optics.
e. interferometry.
____ 13. Interferometry
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. none of the above
____ 14. The ____ of a telescope is a measure of its ability to show fine detail and depends on the diameter of the
objective.
a. light-gathering power
b. focal length
c. magnifying power
d. resolving power
e. spherical aberration
____ 15. Which of the following telescopes must be used above Earth's atmosphere?
a. an optical telescope
b. the VLBI telescope
c. an x-ray telescope
d. a radio telescope
e. none of the above
____ 16. The
a.
b.
c.
d.
e.
energy of a photon
is proportional to the wavelength of the light.
is inversely proportional to the wavelength of the light.
depends only on the speed of the light.
depends only on the mass of the photon.
depends on both the mass and speed of the photon.
____ 17. Long wavelength visible light
a. will have a greater energy than short wavelength visible light.
b. will have a speed that is faster than short wavelength light.
c. has a higher frequency than short wavelength visible light.
d. will appear blue in color to the average human eye.
e. will appear red in color to the average human eye.
____ 18. Which of the following types of electromagnetic radiation has the highest frequency?
a. x-rays
b. visible light
c. radio
d. gamma-rays
e. infrared radiation
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