General Science - Physics (Basics)
Which of the following statements about ultrasound is correct?
Which of the following statements about ultrasound is correct?
hard Q9 of 15
Step-by-Step Solution
Step 1: Understand ultrasound properties
Ultrasound refers to sound waves with frequency above 20,000 Hz, beyond human hearing.Step 2: Analyze options
It is used in medical imaging (sonography). It can travel through solids and is a mechanical wave, not electromagnetic. Frequencies below 20 Hz are infrasound, not ultrasound.Final Answer:
It is used in medical imaging → Option CQuick Check:
Ultrasound use = Medical imaging ✅
Quick Trick: Ultrasound frequency > 20,000 Hz used in sonography.
Common Mistakes:
MISTAKES- Confusing ultrasound with electromagnetic waves or low-frequency sound.
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