WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
Which of the following ultrasound frequency ranges is used for therapeutic
purposes
0.75-3MHz
A crystal that converts electrical energy into acoustic energy is defined as
Reverse piezoelectric effect
Which of the following ultrasound heads is transmitting at 1 MHz
The one that penetrates deeper
Represents intensity
Beam nonuniformity ratio
Not a coupling medium
Foam
Not a type of diathermy
Shockwave
Rotation of molecule due to changing polarizations of eddy current
Dipole effect
Greatest amount of heating from induction drum
Muscle
Power threshold needed to produce thermal effect
>12W
, Energy used with short wave diathermy
Electromagnetic
1) Which part of the ultrasound device houses the crystal?
Coil, Generator, Soundhead, Transducer
Transducer
2) Which of the following tissues is ultrasound absorbed the most efficiently
Nerve, superficial bone, muscle, adipose
Superficial bone
3) What ultrasound frequency has the highest rate of absorption (heating)
3MHz, 2MHz, 1MHz, All of them
3 MHz
4) The process of a crystal converting electrical energy into acoustic energy
Law of Gothrus-Draper, Piezoelectric Effect, Revers Peizoelectric Effect, Pisces
effect
Reverse piezoelectric effect
5) Which ultrasound characteristic describes the amount of variability of intensity
within the beam