Which material is commonly effective at eliminating beta radiation?

The choice of glass or plastic as the correct answer is supported by their properties as materials that can effectively shield against beta radiation. Beta particles are high-energy, high-speed electrons or positrons that can penetrate materials to a certain extent. However, they are less penetrating than gamma radiation.

Glass and plastic provide a sufficient barrier against beta particles, as they have the right density and atomic structure to stop these particles effectively. When beta radiation encounters these materials, the electrons within them can absorb the energy of the beta particles, preventing them from passing through.

In contrast, while lead is highly effective for gamma radiation due to its high density, it is not necessary for beta radiation, as less dense materials like plastic or glass can suffice. Concrete can also shield against beta particles, but it is bulkier and not as easily handled as glass or plastic. Aluminum can be effective to an extent, but it is less efficient compared to glass or plastics that are specifically designed for such shielding purposes.

Therefore, glass or plastic is a practical choice for containing beta radiation and is widely used in various applications where beta radiation exposure is a concern.