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Questions and Answers

Which astronomer revolutionized the study of extraterrestrial bodies by applying the telescope to his research in the early 17th century?

Isaac Newton

Galileo (correct)

Johannes Kepler

Nicolaus Copernicus

What is the primary function of a telescope?

To detect and measure radiation in every region of the electromagnetic spectrum

To collect and analyze radiation from celestial objects

To form magnified images of distant objects (correct)

To enhance observational capability

What is the most important investigative tool in astronomy?

The spectrograph

The telescope (correct)

The camera

The charge-coupled device

What has been developed since Galileo's pioneering work in astronomy?

All of the above Signup and view all the answers

What does a telescope provide a means of doing?

Collecting and analyzing radiation from celestial objects Signup and view all the answers

Which component of a modern system for measuring radiation from astronomical sources serves as a 'bucket' for collecting visible light?

Telescope Signup and view all the answers

What is the purpose of the instrument attached to the telescope in a modern system for measuring radiation?

All of the above Signup and view all the answers

What is the primary function of a detector in a modern system for measuring radiation?

To record the observations Signup and view all the answers

When might the sorting of radiation in a modern system be fairly crude?

When separating blue light from red light Signup and view all the answers

What are the three basic components of a modern system for measuring radiation from astronomical sources?

Telescope, instrument, detector Signup and view all the answers