Multiple Choice
Angular frequency of precision is called
A) Lower frequency
B) higher frequency
C) Larmor frequency
D) linear frequency
Correct Answer:
Verified
Correct Answer:
Verified
Q2: Fatty tissues have<br>A)relaxation time of several seconds<br>B)relaxation
Q3: Hardness of x-ray beam can be increased
Q4: As the x-rays pass through matter, it's
Q5: Scattered x-ray beams approach the detector screen<br>A)perpendicularly<br>B)parallel<br>C)anti-parallel<br>D)at
Q6: Soft x-rays have<br>A)high energies<br>B)low energies<br>C)lowest frequency<br>D)longest wavelength
Q7: Acoustic impedance is defined as<br>A)ρ⁄c<br>B)ρc<br>C)c⁄ρ<br>D)ρ+c
Q8: A good x-ray source should produce x-rays
Q9: If fast moving electrons rapidly decelerate, then
Q10: Contrast media consist of elements with<br>A)lower atomic
Q11: A sound wave which has frequency higher