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

Options

(a) 15 – 30 MHZ
(b) 1 – 15 MHZ
(c) 45 – 70 MHZ
(d) 30 – 45 MHZ

Correct Answer:

1 – 15 MHZ

Explanation:

Ultrasound of 1 – 15 MHZ frequency is beamed into human body to study the structure of organs with the help of sonography.