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If the radius of curvature of a spherical mirror is 34.52 cm, then the focal length of that spherical mirror is
  • a)
    69.04 cm
  • b)
    17.26 cm
  • c)
    - 34.52 cm
  • d)
    34.52 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Ifthe radius of curvature of a spherical mirror is 34.52 cm, then the ...
Relation between the radius of curvature and focal length of spherical mirror is R = 2f
Here, R = 34.52 cm
 
Or, f = R/2
Or, f = 34.52/2 = 17.26 cm
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Ifthe radius of curvature of a spherical mirror is 34.52 cm, then the focal length of that spherical mirror isa)69.04 cmb)17.26 cmc)- 34.52 cmd)34.52 cmCorrect answer is option 'B'. Can you explain this answer?
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