Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The dose of X-rays and most other ionizing radiations is measured as Roentgen units. Reason (R): One Roentgen is that dose of radiation, which produces one electrostatic unit of charge in one cm3 volume under a standard set of conditions. In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Remember that Roentgen is an obsolete unit, and modern measurements use Sievert.

Answer 1

The Correct Option is B