Chapter 20, Problem 84RQ

Interpretation Introduction

Interpretation:

The percentage by which the distance is increased from a small unshielded source to reduce the radiation intensity by $10.0\%$ is to be determined.

Concept Introduction:

The inverse square law states that the intensity of radiation is directly proportional to the inverse of the square of distance. It is stated as follows:

$\frac{I_1}{I_2}=\frac{d_2{}^2}{d_1{}^2}$

Here, $I_1$ is the intensity at distance $d_1$ and $I_2$ the is intensity at a distance $d_2$.

The process in which a subatomic particle and the nucleus of an atom collide with each other in order to form one or more nuclides is known as a nuclear reaction.

These nuclides are different from the nuclides that are present initially.