Exercise 5.1 A

DifficultySecondary SchoolHigh school/other
★BasicEasy
★★DemandingBasic
★★★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

DifficultySecondary SchoolHigh school/other
★BasicEasy
★★DemandingBasic
★★★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

DifficultySecondary SchoolHigh school/other
★BasicEasy
★★DemandingBasic
★★★Demanding
★★★★Difficult
★★★★★Very difficult

Specify the water linear attenuation coefficient.

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