Which of the following is suitable as a minimum shielding for beta particles?
1 cm on lead
1 sheet of paper
Air
Gloves
1 m of concrete
1 cm of lead is suitable as a minimum shielding for beta particles.
The minimum shielding for beta particles depends on their energy. However, out of the options provided, the most suitable minimum shielding for beta particles is 1 cm of lead. Beta particles are high-energy electrons or positrons, and lead has a high atomic number, making it an effective shield against them.
1 sheet of paper would not provide sufficient shielding as beta particles can easily penetrate through it.
Air does not provide significant shielding against beta particles.
Gloves do not provide any meaningful protection against beta particles.
1 m of concrete would provide additional shielding against beta particles, but it is not the minimum requirement for effective shielding.