Question

Which of the following is/are true when comparing radio telescopes to optical telescopes? Select all that apply

- radio telescopes can observe objects in the daytime
- radio telescopes can observe objects even when it's cloudy
- optical telescopes are usually larger than radio telescopes

Answer 1

- radio telescopes can observe objects in the daytime

- radio telescopes can observe objects even when it's cloudy

There are fundamental differences between radio and optical telescopes, but they are both collectors of light, and we need to use both to observe very different phenomena.