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-rw-r--r--3769/CH25/EX25.18/Ex25_18.sce16
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diff --git a/3769/CH25/EX25.18/Ex25_18.sce b/3769/CH25/EX25.18/Ex25_18.sce
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+clear
+//Given
+T=30.0
+
+//Calculation
+//
+l=0.693/T
+T1=1/l
+t=log(4)/l
+t1=log(8)/l
+
+//Result
+printf("\n (i) average life is %0.4f /day",l)
+printf("\n (ii) The time taken for 3/4 of the original no. to disintegrate is %0.2f days",T1)
+printf("\n (iii) Time taken is %0.0f days",t)
+printf("\n (iv) Time taken is %0.0f days",t1)