JKSSB Mock Tests

Which part of the bifocal lens facilitates near vision?

A. Upper part with concave lens
B. Lower part with concave lens
C. Upper part with convex lens
D. Lower part with convex lens
Answer: Option D
Solution (By JKSSB Mock Tests Team)
In bifocal glasses, the lower segment contains a convex lens to provide the extra refractive power needed for reading and close-up tasks.
This Question Belongs to: General science Physics set 1
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