Does focal length changes in concave and convex
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yes focal length changes in concave and convex....
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HELLO DEAR FRIEND
FOCAL LENGTH DOESN'T CHANGES IN CONCAVE LENS OR CONVEX LENS OF GLASS.
BUT FOCAL LENGTH CHANGES OF CONVEX LENS OF EYE WHICH IS MUSCULAR .
HOPE IT HELPS YOU DEAR FRIEND THANKS
mehak2715:
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