Exam 5: Light and Telescopes

CCD stands for a

Astronomers build optical telescopes on tops of mountains because

Which of the following types of electromagnetic radiation has the greatest energy

Increasing the diameter of a telescope I.increases its light-gathering power.II.increases its resolving power.III.increases it magnifying power.IV.increases its chromatic aberration.

__________ in Earth's atmosphere absorbs most microwave and infrared radiation coming from outside Earth's atmosphere.

Explain why the majority of large modern telescopes are not refractors.

A new generation of ground-based telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes

Far infrared astronomy must be done from high-flying aircraft because

________________ absorbs most of the ultraviolet radiation coming from the Sun.

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 ____.

How do atmospheric windows limit observations made from Earth's surface

The resolving power of a telescope is

Which of the following types of electromagnetic radiation has the highest frequency

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

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

Heat involves wavelengths that are in the ____________ band of the electromagnetic spectrum.

Resolving power refers to the ability of a telescope to resolve fine detail.

In modern astronomy, an interferometer

_________________ absorbs most infrared and microwaves coming from outside Earth's atmosphere.

Light is referred to as _______________________ radiation.