Echo of Sound Learning App | Class 10 Physics MCQ e-Book PDF
Class 10 Physics MCQs (Grade 10) From Textbook

Class 10 Physics MCQs – Certification Test 475

Echo of Sound MCQ (Question 475) – App & e-Book Download

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MCQ 475: The total distance covered by the sound from the point of generation to the reflecting surface and back should be at least:

  1. 30 m
  2. 34 m
  3. 40 m
  4. 38 m

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