In lens makers formula if R1 and R2 are equal then f becomes infinite – InterviewSolution

1.	In lens makers formula if R1 and R2 are equal then f becomes infinite how? Does any condition exists like R1= R2? For a double convex/concave lens how R1 ≠ R2?
Answer» In lens makers formula if R1 and R2 are equal then f becomes infinite how? Does any condition exists like R1= R2? For a double convex/concave lens how R1 ≠ R2?

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