Limitations of ground-based optical telescopes (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which atmospheric component significantly absorbs infrared radiation?
Which atmospheric component significantly absorbs infrared radiation?
Water vapour
What causes atmospheric turbulence that affects telescope observations?
What causes atmospheric turbulence that affects telescope observations?
Convection currents
What is the term for the effect of atmospheric turbulence on image sharpness?
What is the term for the effect of atmospheric turbulence on image sharpness?
Astronomical seeing
Why do stars appear to twinkle when viewed from Earth?
Why do stars appear to twinkle when viewed from Earth?
Atmospheric turbulence bends light
Which types of radiation are strongly absorbed by the upper atmosphere?
Which types of radiation are strongly absorbed by the upper atmosphere?
Gamma rays and X-rays
How transparent is the atmosphere to visible wavelengths?
How transparent is the atmosphere to visible wavelengths?
Relatively transparent
What combination of factors makes an ideal ground-based observatory site?
What combination of factors makes an ideal ground-based observatory site?
High altitude, dry, pollution-free
What percentage of Earth's atmosphere sits below Mauna Kea observatory at 4,207 metres?
What percentage of Earth's atmosphere sits below Mauna Kea observatory at 4,207 metres?
40%
What is the main advantage of space-based telescopes over ground-based ones?
What is the main advantage of space-based telescopes over ground-based ones?
Avoid all atmospheric effects
Why must X-ray astronomy primarily be conducted from space?
Why must X-ray astronomy primarily be conducted from space?
Atmosphere strongly absorbs X-rays