ENTRANCE TEST – 2011 Multiple Questions and Answers.
Exercise Questions ::
PHYSICS
26. | Half-life of a radioactive element is: |
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| A. | Inversely proportional to square of decay constant |
| B. | Directly proportional to square of decay constant |
| C. | Directly proportional to decay constant |
| D. | Inversely proportional to decay constant |
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28. | The ratio of the rate of decay of a parent atom to the number of radioactive nuclei present at that time is equal to: |
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| A. | Half-life of radioactive element |
| B. | Mean life |
| C. | Decay constant of radioactive element |
| D. | Activity if radioactive element |
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