SSC CPO SI and ASI Model Paper 6

Question : 96 of 200

Marks: +1, -0

The focal length of a convex mirror is 20 cm; its radius of curvature will be

Solution:

(4) Radius of curvature is twice thefocal length, so the radius ofcurvature = 2 × Focal length

= 2 ×20 = 40 cm.

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