Q

Which relation connects object distance u, image distance v and focal length f for a spherical mirror?

RRB Technicians Grade-III; RRB ALP (Stage-I); RRB Group-D 28/12/2024 / Shift-III; 26/11/2024 / Shift-II; 19/09/2022 / Shift-II; 01/09/2022 / Shift-I; 11/10/2018 / Shift-II 2024; 2022; 2018
✓ Answer: A 1/v + 1/u = 1/f
The mirror formula is 1/f = 1/v + 1/u, with Cartesian signs.
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