ESS Final (Practice Test I)

Front

What is a refracting telescope?

Back

A refracting telescope is an optical telescope that uses lenses to gather and focus light to produce an image.

Front

What is a reflecting telescope?

Back

A reflecting telescope is an optical telescope that uses mirrors to gather and focus light to produce an image.

Front

What is light-gathering power?

Back

Light-gathering power refers to the ability of a telescope to collect light, which is crucial for observing faint objects.

Front

What is resolving power in telescopes?

Back

Resolving power is the ability of a telescope to distinguish between two closely spaced objects.

Front

What type of spectrum does an incandescent light bulb produce?

Back

An incandescent light bulb produces a continuous spectrum.

Front

What is the photosphere of the sun?

Back

The photosphere is the visible surface of the sun, from which light is emitted.

Front

What is an absorption spectrum?

Back

An absorption spectrum is a spectrum that shows dark lines or bands, indicating the absorption of specific wavelengths of light by elements in a star's atmosphere.

Front

What is an emission spectrum?

Back

An emission spectrum is a spectrum that shows bright lines or bands, indicating the emission of specific wavelengths of light by excited atoms.

Front

What is a continuous spectrum?

Back

A continuous spectrum is a spectrum that contains all wavelengths of light without any gaps.

Front

What is a prism used for in telescopes?

Back

A prism is used in telescopes to refract light and separate it into its component colors.