What is the equivalent of 0.5 rem in millisieverts?

What is the equivalent of 0.5 rem in millisieverts?

• A. 0.5 mSv
• B. 50 mSv
• C. 5 mSv
• D. 0.05 mSv

Answer: (C)

Dose units convert with a fixed factor: 1 rem equals 0.01 sievert, and 1 sievert equals 1000 millisieverts, so 1 rem equals 10 millisieverts. Multiply by 10 to go from rem to mSv. Therefore, 0.5 rem equals 0.5 × 10 mSv = 5 mSv. This aligns exactly with the conversion, since 0.5 rem = 0.005 Sv = 5 mSv. Other numbers would require different conversion steps and don’t match this factor.

Dose units convert with a fixed factor: 1 rem equals 0.01 sievert, and 1 sievert equals 1000 millisieverts, so 1 rem equals 10 millisieverts. Multiply by 10 to go from rem to mSv. Therefore, 0.5 rem equals 0.5 × 10 mSv = 5 mSv. This aligns exactly with the conversion, since 0.5 rem = 0.005 Sv = 5 mSv. Other numbers would require different conversion steps and don’t match this factor.