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Concave mirror object at d1 from curvatu...

Concave mirror object at `d_1` from curvature of radius R and image at `d_2` from C. Then,

A

`R = 2(d_1 d_2)/(d_1 - d_2)`

B

`R = (d_1 d_2)/(d_1 - d_2)`

C

`R = (d_1 d_2)/(d_1 + d_2)`

D

`R = 2(d_1 d_2)/(d_1 + d_2)`

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
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