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Inventions MCQs – Certification Test 681

Lense Formula Trivia (Question 681) – Study App & e-Book Download

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MCQ 681: Lens formula was discovered by a second Astronomer in Britain named as:

  1. Sir Nickolaus August Otto
  2. Sir Thedore Maiman
  3. Sir Edmund Halley
  4. Sir Steven Sasson
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