Which telescopes to study for JEE?

The syllabus mentions only astronomical telescopes while in HCV and DCP there are also terrestrial and Galilean telescopes.

Should I cover these all telescopes?

I have seen question in allen papers and my coaching papers from astronomical telescope only, let's see what others have opinion about this.

Yeah question from Astronomical telescope is asked last year

@deep_2020 it will hardly take you 1 hr to go through all types of telescope from DCP , so I don’t think there’s much harm in once going through them .
Still , in jee mains paper , from what i have seen , only questions from astronomical telescope is asked

Thanks, yeah it's true. Basic theory is same for all only formulae are different.