Astronomy Astronomy Telescopes and Instruments

Question 1

What type of telescope uses mirrors to collect and focus light?

Accepted Answer

Reflecting telescope

Answer

Refracting telescope

Answer

Radio telescope

Answer

X-ray telescope

Question 2

What does a spectrograph attached to a telescope measure?

Accepted Answer

The wavelengths of light emitted by celestial objects

Answer

The distance to nearby stars using parallax

Answer

The brightness of stars over time

Answer

The proper motion of stars across the sky

Question 3

What is the primary advantage of space-based telescopes over ground-based ones?

Accepted Answer

They avoid atmospheric distortion and absorption

Answer

They can use larger mirrors

Answer

They are cheaper to build and maintain

Answer

They have higher data transmission rates

Question 4

What technology do modern large telescopes use to correct for atmospheric blurring in real time?

Accepted Answer

Adaptive optics

Answer

Charge-coupled devices (CCDs)

Answer

Interferometry

Answer

Coronagraphy

Question 5

What is the unit used to measure the light-gathering power of a telescope related to its mirror diameter?

Accepted Answer

Aperture

Answer

Focal length

Answer

Magnification

Answer

Field of view

Question 6

Which type of telescope is best suited for studying the cold gas and dust in star-forming regions?

Accepted Answer

Radio telescope

Answer

Optical telescope

Answer

X-ray telescope

Answer

Gamma-ray telescope