Unit of radiation exposure ?: (A) Gray, (B) Roentgen, (C) Sieve, (D) Red
Answer is B. Ans. is 'b' i.e., Roentgen Units of potency Roentgen and coulomb per kilograme - Units of exposure. It is the amount to which a person is exposed. Red and Gray- Units of absorbed dose. It is the amount which is absorbed per gram of tissue. Rem and Sieve - Product of the absorbed dose and the modifying factor. Represent the degree of potention danger to health