We are planning to build our
own telescope that can resolve the Great Red Spot on the surface of Jupiter at a wavelength of
300 nm. The farthest distance between the Earth and Jupiter is 766 × 10^5 km and the Great Red
Spot has currently a diameter of 17,540 km.
(i) By the help of the Rayleigh criterion,try to determine the diameter of the lens’ aperture of our telescope
that is needed to resolve the Great Red Spot on Jupiter.
Impacts have formed many craters on the Moon’s surface. We would like to study some of the
craters with our new telescope. The distance between Moon and Earth is 355,340 km.
(ii) Find out the smallest possible size of the craters that our telescope can resolve.
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