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Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. (a) Is she short-sighted or long-sighted? (b) What type of lenses

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Question

Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class.

  1. Is she short-sighted or long-sighted?
  2. What type of lenses-converging or diverging-would an optician prescribe for her?
Very Short Answer
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Solution

  1. She is short-sighted.
  2. An optician would prescribe diverging lenses to correct her defect.
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Chapter 3: The Human Eyes And The Colorful World - Exercise 2 [Page 158]

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Lakhmir Singh Physics [English] Class 10
Chapter 3 The Human Eyes And The Colorful World
Exercise 2 | Q 17. | Page 158
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