Exercise 5.1 A

Difficulty Secondary School High school/other
★ Basic Easy
★★ Demanding Basic
★★★ Demanding
★★★★ Difficult
★★★★★ Very difficult

How many ionisation events are detected by the Geiger counter in 10 seconds with exactly the same experimental arrangement in 10 years?

Answer: 710 ionization events

Exercise 5.1 B

Difficulty Secondary School High school/other
★ Basic Easy
★★ Demanding Basic
★★★ Demanding
★★★★ Difficult
★★★★★ Very difficult

Illustrate distance effect on the intensity of radiation with graphical graph. Interpret the graph you draw.

Answer: The Geiger counter shows that the intensity of the radiation decreases rapidly as the distance increases.

Exercise 5.1 C

Difficulty Secondary School High school/other
★ Basic Easy
★★ Demanding Basic
★★★ Demanding
★★★★ Difficult
★★★★★ Very difficult

Specify the water linear attenuation coefficient.

Answer: $2{,}7\ \frac{1}{m}$