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Reported Question / Answer
Q.) The attenuation coefficient of bone is 600 m<sup>-1</sup> for x-rays of energy 20 keV and the intensity of beam of x-rays is 20 Wm<sup>-2</sup> then the intensity of beam after passing through a bone of 4mm is
1)
2.5 Wm<sup>-2</sup>
2)
3 Wm<sup>-2</sup>
3)
1.8 Wm<sup>-2</sup>
4)
2.0 Wm<sup>-2</sup>
5)
NULL
Answer :
3
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