Question

A radioactive sample is kept at the centre of an evacuated spherical vessel. Out
of 3 radiations, name the radiation which is safe .Give reason.​

Answer 1

Answer:

For safety, the radiations α, β and γ emitted by the radioactive sample should not come out of the sphere, αparticles have a less penetrating power and therefore, the walls of the sphere easily stop them. ... So some safety is obtained if the sphere is large. γ-radiations are also not absorbed by the walls.....