- 28 A Radioactive Substance T 1 2 12 4 Hours Initially Having Radioactivity Of 0 Mci Calculate Its Decay Constant 1 (16.34 KiB) Viewed 42 times
- 28 A Radioactive Substance T 1 2 12 4 Hours Initially Having Radioactivity Of 0 Mci Calculate Its Decay Constant 2 (24.96 KiB) Viewed 42 times
28: A radioactive substance (T 1/2= 12.4 hours) initially having radioactivity of 0 mCi.) . Calculate its decay constant (2). 2. Determine its activity after four hours.
Q4: Co-60 radioactive source having an activity of 370 kBq. In units of Ci this activity equal to: (a) 100 MCi. (b) 10 mCi. (c) 3.7 mCi. (d) 0.01 mCi. Q5: Sr-90 radioactive is a beta emitter nuclide having an activity of 0.1 Ci (used in nuclear experimental laboratory). In units of Bq this activity equal to: (a) 3.7 kBq. (b) 54 MBq. (c) 3.7 GBq. (d) 0.1 mBq.,