Homework Answers
use the lens maker equation through the lens as
1/f = (n-1)* (1/R1 - 1/R2)
here R1 = 0.103 m
R2 for plane lens = infinity
so
1/f = (1.3 -1)*(1/0.103)
f = 0.343 m or 34.3 cm
so for this the answer is option 3, the ray will cross the
axis 34.3 cm beynd the lens
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