Help me out with sign conventions in lensmakers formula
Sahithi , 9 Years ago
Grade 12
Most Scoring Topics in IIT JEE> Help me out with sign conventions in lens...
2 Answers
Umakant biswal
dear sahithi
for a convex lens
r1 = positive
r2 = negative
f = positive
where r1 , r2 are radius of curvature
and for diverging lens
R1 = negative
R2 = positive
f= negative
HOPE IT CLEARS
REGARDS
for a convex lens
r1 = positive
r2 = negative
f = positive
where r1 , r2 are radius of curvature
and for diverging lens
R1 = negative
R2 = positive
f= negative
HOPE IT CLEARS
REGARDS
Kunal Dhawale
Thanks for waiting for the best answer. The direction from which the light comes is taken positive and the other is taken negative. It is same as Cartesian plain
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