Exam 6: The Tools of the Astronomer

The diffraction limit of a 4-meter telescope is _________ than that of a 2-meter telescope.

A prism is able to spread white light out into a spectrum of colors based on the property of:

Point sources look brighter when viewed through a telescope.

The magnification of a telescope depends on the focal length of the telescope and:

What is the angular resolution of a 1-m,ground-based,optical telescope that observes at a wavelength of 600 nm compared to that of a 300-ft,single-dish radio telescope that observes at a wavelength of 21 cm?

Label the eyepiece,primary mirror,secondary mirror,focus,and focal length of the telescope below.

Samples of which celestial object(s)have been brought back to Earth to be studied in detail?

The SETI project's Allen Telescope Array will have 350 radio dishes,each with an individual diameter of 6 m,spread out over a circle whose diameter is 1 km.What would this array's spatial resolution be when it operates at 6,000 MHz?

Typically,video is shot using 24 to 30 frames per second (one frame each 33 to 42 ms).If a filmmaker shot new experimental video at 100 frames per second (one frame each 1 ms),how would it look during playback to the human eye?

Explain how adaptive optics help compensate for atmospheric seeing.

If we could increase the quantum efficiency of the human eye,it would:

Photography provides an improvement over naked-eye observations because:

Arrays of radio telescopes can produce much better resolution than single-dish telescopes because they work based on the principle of:

The major advantage CCDs have over other imaging techniques is that:

Label the eyepiece,lens,focus,and focal length of the telescope below.

The path of red light is deflected by a larger angle than blue light when passing through a glass prism.

Telescopes and satellites such as COBE,WMAP,and Planck are designed to detect microwave radiation emitted by:

The image quality of most optical telescopes is limited by atmospheric refraction experienced by light as it passes through the Earth's atmosphere.

In 2008,the Cassini spacecraft made a flyby of Enceladus,one of the icy moons of Saturn.If the spacecraft's high resolution camera had an angular resolution of 3 arcsec,and it flew at an altitude of 23 km above Enceladus's surface,how large an object could be resolved on the surface?

Calculate the resolution of an interferometric array consisting of five 10-m radio telescopes,each located 1,000 meters apart from each other and observing a distant object at a wavelength of 21 cm.