In: Physics
What is the resolving power of a 38 cm telescope?
________________________seconds of arc
What do two stars 1.5 seconds of arc apart look like through this
telescope?
A spy satellite orbiting 340 km above Earth is supposedly
capable of counting individual people in a crowd. Roughly what
minimum-diameter telescope must the satellite carry? (Hint: Use the
small-angle formula. Assume that a human is about 0.5 m from
shoulder to shoulder.)
_______________________cm