Question

The teacher investigated how the thickness of lead

affected the amount of gamma radiation that could
pass through it. Explain why the teacher stood as far
away from the apparatus as possible.

Answer 1

The teacher stood as far away from the apparatus as possible to reduce the amount of gamma radiation exposure. Gamma radiation can be harmful to human health and exposure to high levels of it can cause cell damage, radiation sickness, and even cancer. By standing farther away, the teacher reduces the amount of radiation that reaches them and therefore minimizes the risk of harm. Additionally, standing farther away can also reduce the amount of interference with the measurements and results of the experiment.

Answer 2

The teacher stood as far away from the apparatus as possible to minimize their exposure to the gamma radiation.

Step-by-step explanation:

Gamma radiation is a type of ionizing radiation that can penetrate materials and can be harmful to living organisms, particularly in high doses. The amount of radiation that passes through the lead can depend on various factors, including the thickness of the lead and the energy of the gamma rays. However, regardless of the amount of radiation that can pass through the lead, the teacher should take precautions to minimize their exposure to radiation. By standing as far away as possible, the teacher reduces their exposure to any potential radiation that may leak from the apparatus or scatter from the lead. This is an important safety measure to protect the teacher from potential harm.