What can shield alpha waves?

What can shield alpha waves?

• A. Clothing
• B. Metal shielding
• C. Water
• D. Plastic

Answer: (A)

Alpha radiation has very low penetrating power. The particles are heavy and carry a double positive charge, so they lose energy quickly as they pass through matter and can be stopped by only a thin layer. A simple piece of clothing provides that protective barrier, preventing alpha particles from reaching the skin or deeper tissues. In practice, even a sheet of paper or fabric can stop them, which is why everyday clothing is considered adequate shielding. Heavier shielding like metal or thick plastics would also stop alpha particles, but they’re unnecessary for normal protection, making clothing the most practical and effective option in common situations.

Alpha radiation has very low penetrating power. The particles are heavy and carry a double positive charge, so they lose energy quickly as they pass through matter and can be stopped by only a thin layer. A simple piece of clothing provides that protective barrier, preventing alpha particles from reaching the skin or deeper tissues. In practice, even a sheet of paper or fabric can stop them, which is why everyday clothing is considered adequate shielding. Heavier shielding like metal or thick plastics would also stop alpha particles, but they’re unnecessary for normal protection, making clothing the most practical and effective option in common situations.