Chapter 5 Telescope Test

What are the two methods through which images can be formed in telescope design?

• Reflection and refraction

• Absorption and diffusion

• Diffraction and dispersion

• Scattering and absorption

Tags

NGSS.HS-PS4-5

What is the role of a reflecting mirror in a telescope?

• To absorb light rays

• To focus incoming light rays

• To disperse light rays

• To block incoming light rays

Tags

NGSS.MS-PS4-2

What is the main function of a refracting lens?

• To reflect light rays

• To absorb light rays

• To focus light rays

• To scatter light rays

What is the main difference between reflecting and refracting telescopes?

• Reflecting telescopes use lenses, while refracting telescopes use mirrors.

• Reflecting telescopes use mirrors, while refracting telescopes use lenses.

• Both use mirrors only.

• Both use lenses only.

In a reflecting telescope, what is the purpose of the secondary mirror?

• To focus light directly to the eyepiece.

• To reflect light to the primary mirror.

• To magnify the image.

• To block unwanted light.

Tags

NGSS.HS-PS4-5

What part of the refracting telescope is responsible for focusing the starlight?

• Eyepiece

• Primary mirror

• Lens

• Secondary mirror

Why are modern telescopes all reflectors?

• Light traveling through lens is refracted differently depending on wavelength

• Reflectors are cheaper to build

• Reflectors are more colorful

• Reflectors are easier to transport

Why can large lenses be problematic in telescopes?

• They can be very heavy and can be supported only at the edge

• They are too expensive

• They are difficult to clean

• They are not transparent

What type of reflecting telescope uses a secondary mirror to direct light to the side of the telescope?

• Prime focus

• Newtonian focus

• Cassegrain focus

• Nasmyth/coudé focus

Tags

NGSS.HS-PS4-1

Which type of reflecting telescope has the simplest design, with light focused directly at the prime focus?

• Prime focus

• Newtonian focus

• Cassegrain focus

• Nasmyth/coudé focus