studying for exam- telescope problem (help!!) 1. The problem statement, all variables and given/known data What diameter optical telescope on the Earth would you need to resolve a lunar lander 3 m across on the surface of the moon 3.8e8m away? 2. Relevant equations 3. The attempt at a solution the only thing I can think of is to use theta=1.22lamda/d.... but what do I do with it? help!