Download Frequency and Pitch Learning App | Class 7 Science Quiz e-Book PDF
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Certification Test 1724

Frequency and Pitch Quiz (Question 1724) – Learning App & e-Book Download

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MCQ 1724: The highest level of frequency which human ear can detect is:

  1. 2 Hz
  2. 20 Hz
  3. 20kHz
  4. 2kHz

Frequency and Pitch Quiz App & e-Book – Class 7 Science Exam Prep

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