7
QuizMultiple Choice

Radio Waves and Applications

Question 7 • NC-Physical Science CR 2024

Which best explains why an MRI is useful for diagnosing cancer but ineffective in treating it?

Answer
A
The frequency of the radio waves used is so high that the waves cannot be used to target specific cells.
B
The wavelength of the radio waves used is so short that the waves cannot be used to target specific cells.
C
The amount of energy carried by radio waves is enough to provide images but not enough to kill cells.
D
The amount of energy carried by radio waves is so high that it provides images but can also damage cells.
Previous
Next