Two gray is equivalent to how many rad?

Two gray is equivalent to how many rad?

• A. 2 rad
• B. 0.2 rad
• C. 200 rad
• D. 20 rad

Answer: (C)

Absorbed-dose units: the gray and the rad are related by a simple factor. 1 gray (Gy) equals 100 rad. So doubling the gray value multiplies the rad value by 100. Therefore, two gray corresponds to 2 × 100 = 200 rad. This conversion is handy for translating older radiation data (in rad) into the SI unit (Gy).

Absorbed-dose units: the gray and the rad are related by a simple factor. 1 gray (Gy) equals 100 rad. So doubling the gray value multiplies the rad value by 100. Therefore, two gray corresponds to 2 × 100 = 200 rad. This conversion is handy for translating older radiation data (in rad) into the SI unit (Gy).