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When X-rays if wavelength 0.5Å pass thro...

When `X`-rays if wavelength `0.5Å` pass through `10 mm` thick `Al` sheet than their intensity is reduced to one sixth . Find the absorption coefficient for Aluminium.

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`mu = (2.303)/(x) , "log"((I_(0))/(I)) = (2.303)/(10)"log"_(10)6 = (2.303 xx 0.7781)/(10) = 0.1752//mm`
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