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The Shiny Outer Surface of a Hollow Sphere of Aluminium of Radius 50 Cm is to Be Used as a Mirror: What Will Be the Focal Length of this Mirror? - Science

The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror: 

 What will be the focal length of this mirror?

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Solution

 The radius of curvature of the mirror 'R' is 50 cm.
      Therefore, focal length 'f' =`R/2` = 25 cm 
  Is there an error in this question or solution?
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APPEARS IN

Lakhmir Singh Class 10 Physics (Science)
Chapter 4 Reflection of Light
Q 19.1 | Page 206
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