Which of the following is the unit of absorbed dose?
Correct answer: B. Gray
- A. Sievert
- B. Gray
- C. Roentgen
- D. Curie
Explanation
Absorbed dose is a measure of the amount of energy deposited in a material by ionizing radiation per unit mass. The unit of absorbed dose is the gray (Gy), which is defined as the absorption of one joule of radiation energy per kilogram of the material.The sievert (Sv) is a unit of dose equivalent, which takes into account the biological effect of different types of ionizing radiation on human tissue. The roentgen (R) is a unit of exposure, which measures the ionization produced by X-rays or gamma rays in air. The curie (Ci) is a unit of activity, which measures the rate of radioactive decay of a substance.
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