Ultrasound of how much frequency is beamed into a human body for sonography?

1. 30-40 MHz

2. 15-30 MHz

3. 1-15 MHz

4. 45-70 MHz

Subtopic:  Introduction to Pollution & Types |
AIPMT - 2007
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints