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  9. Q33

CGPSC 2022 · Question 33 of 100

What is / are not true among the following? (i) Audible range of sound for human beings is approximately 20 Hz to 10 kHz. (ii) Sound waves with frequencies higher than 10 kHz are called ultrasound. (iii) In earthquake, ultrasounds are produced before main shock waves.

Science & Tech

  1. A(i) and (ii)
  2. B(i) and (iii)
  3. C(i), (ii) and (iii)Correct
  4. DOnly (iii)

Answer: C. (i), (ii) and (iii)

Explanation

Sound Wave Concepts Explained Let's carefully examine each statement regarding sound waves to determine which ones are not true. Understanding the different types of sound frequencies and their properties is key to solving this question.

Source: CGPSC 2022 official paper

← Q32View full paper (100 questions)Q34 →

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