Recall that a raisin cake is sometimes used to imagine how an expanding universe behaves. Suppose you are in a uniformly expanding raisin cake, sitting on Raisin A, looking at Raisin B, 2 cm away from you
Raisin B is moving away from you at 1 cm/sec. At the same time, you observe another Raisin C, which is moving away from you at 3 cm/sec. How far away is Raisin C from Raisin A?
A) 6 cm
B) 3 cm
C) 2/3 cm
D) 3/2 cm
E) impossible to say
A
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Indicate whether the statement is true or false
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How far apart must these two point sources be if they are to be just resolved by your eye? Assume that the resolution is diffraction limited and use Rayleigh's criterion.
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A. graph a B. graph b C. graph c D. graph d
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