Atomic Structure Question 195
Question: The MRI (magnetic resonance imaging) body scanners used in hospitals operate with 400 MHz radio frequency The wavelength corresponding to this radio frequency is
Options:
A) 0.75 m
B) 0.75 cm
C) 1.5m
D) 2cm
Show Answer
Answer:
Correct Answer: A
Solution:
- $ \lambda =\frac{c}{v}=\frac{3\times 10^{8}}{400\times 10^{6}}=0.75m $