A few sheets of ordinary paper can form an effective shield against what type of radiation?
A)alpha particles
B)cosmic rays
C)gamma rays
D)neutrons

Question

Quizplus · Accepted Answer

Alpha particles have low penetrating power and can be stopped by a sheet of paper or even by skin. Therefore, a few sheets of ordinary paper can form an effective shield against alpha radiation.

Option B) cosmic rays have a high energy and are composed of highly penetrating particles such as protons and atomic nuclei. A few sheets of paper cannot provide effective shielding against cosmic radiation.

Option C) gamma rays are highly penetrating electromagnetic radiation and require dense materials such as lead or concrete for proper shielding. Paper is not an effective shield against gamma radiation.

Option D) neutrons are neutral particles that can easily penetrate dense materials such as concrete and lead. Neutrons require specialized materials such as boron, water, or polyethylene for effective shielding, and paper is not an effective shield against neutrons.

A Few Sheets of Ordinary Paper Can Form an Effective