Answers

The Brainliest Answer!
2016-03-26T12:58:32+05:30
The radius of curvature of a spherical mirror is 20 cm.
so,
f  =  R/2
  =20/2 =10cm
so,the focal length will be be 10cm

2 5 2
2016-03-26T13:24:02+05:30
Focal length is 10cm respectively.
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