What ray travels 2-3 inches in the air and has low penetrating capabilities?

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Succeed in the Damage Controlman (DC) A School Test 3 Exam. Utilize flashcards and multiple-choice questions, each with detailed hints and explanations. Gear up for your success!

Multiple Choice

What ray travels 2-3 inches in the air and has low penetrating capabilities?

Explanation:
Alpha radiation behaves as a heavy, positively charged helium nucleus. In air it travels only a short distance because it interacts strongly with molecules and loses energy quickly, so its range is limited to roughly a couple of inches. Its penetrating power is low, easily stopped by a sheet of paper or even a thin layer of skin. That description lines up with a ray that goes about 2–3 inches in air and has low penetrating capability. Beta radiation consists of lighter electrons and travels farther while gamma rays are highly penetrating and require dense shielding. The described properties point to alpha as the best match.

Alpha radiation behaves as a heavy, positively charged helium nucleus. In air it travels only a short distance because it interacts strongly with molecules and loses energy quickly, so its range is limited to roughly a couple of inches. Its penetrating power is low, easily stopped by a sheet of paper or even a thin layer of skin. That description lines up with a ray that goes about 2–3 inches in air and has low penetrating capability. Beta radiation consists of lighter electrons and travels farther while gamma rays are highly penetrating and require dense shielding. The described properties point to alpha as the best match.

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