M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:

Substances X and Y are available to be used for resonance imaging in a patient. X releases beta particles and has a half-life of 3.4 years, while Y releases alpha particles and has a half-life of 2 ms. Which of the substances would be best for use in the imaging, considering that imaging works through the release of particles from the body, which are read by a machine outside the body.

A

Substance X

B

Substance Y

C

Both substances would be equally effective

D

Neither substance would be effective