Radioactivity: it refers to the particles which are nuclear instable and emits radiation. The most common types of radiation are alpha, beta, and gamma. Radioactive decay rates are normally stated in terms of their half-life. Radiation is distributed equally in all direction obeying the inverse square flaw. E.g. of radioactive substance = uranium (U) and radium (Ra). Concept introduction: Thermoluminescent dosimeter, Geiger-Muller counter, scintillation counter and film badge dosimeter are device to detect radioactivity.

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Chapter 21, Problem 13E

Interpretation Introduction

Interpretation:

Radioactivity: it refers to the particles which are nuclear instable and emits radiation.

The most common types of radiation are alpha, beta, and gamma. Radioactive decay rates are normally stated in terms of their half-life.

Radiation is distributed equally in all direction obeying the inverse square flaw.

E.g. of radioactive substance = uranium (U) and radium (Ra).

Concept introduction:

Thermoluminescent dosimeter, Geiger-Muller counter, scintillation counter and film badge dosimeter are device to detect radioactivity.

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