1/f = (n - 1)[1 / RA - 1 / RB]
n = 2
RA = - a
RB = 3a
1/f =(2 -1)[ - 1/a - 1/3a]
f = 3 a / 4
Ans(5)
017 (part 1 of 3) 10.0 points A thin lens has a crescent shape, which i...
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