An observer with normal eyes views an object with magnifying glass of focal length 5…

An observer with normal eyes views an object with magnifying glass of focal length 5 cm. the angular magnification is?
[least distance of distinct vision D = 25 cm]
  • A.
    -6
  • B.
    -5
  • C.
    5
  • D.
    6
Correct Answer: Option A
Explanation

Angular magnification, M = ((D)/F + 1) where D is least distance of distinct vision
∴ M = ((25)/5 + 1) = -6

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