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Asked: 2020-12-25T09:52:26+00:00 In:

The radius of curvature of a mirror is 20cm the focal length is-

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Poll Results

33.33%(a) 20cm ( 6 voters )
55.56%(b) 10cm ( 10 voters )
11.11%(c) 40cm ( 2 voters )
0%(d) 5cm
Based On 18 Votes

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NCERT Solutions for Class 10 Science Chapter 10
Important Board Questions
Light – Reflection and Refraction
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Multiple Choice Questions
Questions No: 10

2020-2021cbsechapter 10class 10class 10 sciencelight – reflection and refractionncertscience
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    1 Answer

    1. (b) 10cm

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