Class 9 Physics Learning App Download | Physics: Efficiency Quiz e-Book PDF
Class 9 Physics MCQs (Grade 9) From Textbook

Class 9 Physics MCQs – Certification Test 516

Physics: Efficiency Quiz (Question 516) – Learning App & e-Book Download

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MCQ 516: The ratio of required form of energy obtained from a system as output to the total energy given to it as input is called its:

  1. efficiency
  2. power
  3. stress
  4. strain

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