Telescope flashcard

Front

What type of telescopes use lenses to magnify the image?

Back

Refracting telescopes use lenses to magnify the image.

Front

What is a telescope that has a parabolic primary mirror and a hyperbolic secondary mirror?

Back

A Cassegrain telescope reflects light back down through a hole in the primary mirror.

Front

What is the total area of a telescope capable of capturing incoming radiation called?

Back

Collecting Area.

Front

Why are many large optical telescopes located on mountains?

Back

To be above part of the atmosphere.

Front

What type of telescopes use mirrors to focus the light of the image?

Back

Reflecting telescopes use mirrors to focus light.

Front

What is the primary function of a telescope?

Back

To gather and magnify light from distant objects.

Front

What is the difference between refracting and reflecting telescopes?

Back

Refracting telescopes use lenses, while reflecting telescopes use mirrors.

Front

What is angular resolution in the context of telescopes?

Back

Angular resolution is the ability of a telescope to distinguish between two closely spaced objects.

Front

What is the significance of the aperture size in a telescope?

Back

A larger aperture allows more light to enter, improving image brightness and clarity.

Front

What is a Newtonian telescope?

Back

A Newtonian telescope is a type of reflecting telescope that uses a flat secondary mirror to direct light to the side.