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Question 7

A concave lens of focal length 20cm forms an image 1/2 the size of the object. The object distance is

  • A.100 cm
  • B.30 cm
  • C.60 cm
  • D.40 cm
Objective

Question details

Exam body
UNN
Subject
Physics
Year
2011/2012
Question no.
#7
Type
Objective
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