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Gamma-rays are acquired from ___________(a) Radiograph(b) X-ray(c) U.V(d) RadiumI have been asked this question by my school principal while I was bunking the class.I would like to ask this question from Testing Aircraft Materials in chapter Testing Aircraft Materials of Aerospace Materials & Processes |
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Answer» RIGHT choice is (d) Radium For EXPLANATION: Gamma-RAYS are acquired from radium. It is typically in radium sulphate FORM. Gamma-rays are rays having a wavelength of around 10^-11centimeters. It TAKES radium 1580 years to decay to one-half it’s original strength. |
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