Suppose you have two small photographs of the Moon. Although both ...

[vicotolentino]

Suppose you have two small photographs of the Moon. Although both look the same at small size, when you blow them up to poster size one of them still looks sharp while the other one becomes fuzzy (grainy) looking.
 
  Which of the following statements is true? A) The one that still looks sharp at large size has better (smaller) angular resolution than the one that looks fuzzy.
  B) The one that looks fuzzy at large size has better angular resolution (smaller) than the one that looks sharp.
  C) Both photographs have the same angular resolution, because they were both printed at the same sizes in each case.
  D) Both photographs have the same angular resolution, because they are both photographs of the same object.

Question 2

It is very cold, but otherwise quite comfortable. You breathe deeply.
 
  Although there is no oxygen (not to worryyour life-support belt will take care of that problem), the air pressure is quite tolerable and seems almost Earth-like (because it is mostly nitrogen). Your vista might even include such breathtaking sights as an ocean of liquid methane before you, and snow-capped (methane snow) mountains behind (although the atmosphere is very smoggy and the visibility consequently is limited). Your solar day is about 16 Earth days long. A large, ringed object seems to hang in your sky, never rising or setting; however, it goes through phases from new to full and back to new again with the same 16-day period as the rising and setting of the Sun.

[akemokai]

Answer to Question 1

A

Answer to Question 2

You are on Titan, a moon of Saturn. Saturn remains stationary in your sky because Titan rotates synchronously with its revolution about Saturn. (You might want to read The Sirens of Titan by Kurt Vonnegut. Be sure to keep in mind, however, that his description of Titan is 30 years out of date.) Titan was visited by a probe from the Cassini spacecraft to Saturn in 2005.