What advantage do reflector telescopes have over refractor telescopes in terms of aperture size?1Faster magnification2Higher portability3Smaller apertures4Larger apertures

What problem do refractor telescopes have that reflectors don't?Group of answer choiceslight loss from secondary elementsbad seeingchromatic aberrationspherical aberrationdiffraction limited resolution

Radio telescopes are much larger than optical telescopes because (Select All the answers that are correct)Group of answer choicescosmic radio sources are very weak relative to their optical counterpartscosmic radio sources are very strong relative to their optical counterpartsradio wavelengths are relatively smallradio wavelengths are relatively largelarger dishes are needed to improve the resolutionsmall dishes can achieve a high resolutionlarge radio dishes are need to improve the light gathering powerlarge radio dishes are need to improve the sound gathering power

Which type of reflecting telescope loses the most light because of its multiple mirrors design? [Hint: this design is commonly used in huge observatory telescopes]Group of answer choicesPrime focusNewtonian focusCassegrain focusNasmyth focus

Give three advantages and three disadvantages of a space telescope compared with a ground-based telescope like the Lovell telescope.

What is the resolution of a telescope?Group of answer choicesits ability to distinguish two adjacent objects close together in the skyits ability to see very faint objectsits ability to make distant objects appear much closer to usits ability to focus more than just visible light for imagingits ability to separate light into its component colors for analysis