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OpenStudy (anonymous):
Which of the following types of radiation can penetrate through paper but not through wood? A. Alpha rays B. Beta rays C. Gamma rays D. Proton rays
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OpenStudy (chmvijay):
alpha radiation can be stopped by a few cm of air or thin sheet of paper beta radiation can be stopped by a few mm of metals like aluminium gamma rays can be most stopped by a thick layer of steel or concrete, but even a few cm of dense lead doesn't stop all of it! can u answer now
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