Exam 5: Light and Telescopes

On the Moon, no air is present. As such, which of the following waves cannot be detected.

The Hubble Space Telescope objective mirror is not affected by

Microwaves have ________ wavelengths and ________ energies compared to the visual band.

Why might astronomers someday establish an observatory on the Moon?

__________ in Earth's atmosphere absorbs most ultraviolet radiation coming from the Sun.

In a reflecting telescope the primary is a _______.

Why can infrared telescopes operate from high flying aircraft and high mountain tops whereas X-ray telescopes must be placed in orbit?

Photons of blue light

Explain how interferometry works.

The light-gathering power of a telescope is directly proportional to

A particle of light is called a ________________.

A _______ is used to produce and analyze a spectrum.

In modern astronomy, an interferometer

Compared to the right side, the left side shows less detail due to ____________.

What are some new techniques and technologies that enable construction of optical telescopes with very large mirrors?

Which blurs our Earth-based view of celestial objects?

Which of the items below is electromagnetic radiation?

What is the wavelength of the shortest wavelength light visible to the human eye?

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.

Fill in the blanks to produce a correct statement: The above computer model shows concentric circles, otherwise known as ________________, from ________ star(s).