Q28.At some instant, a radioactive sample S1 having an activity 5μCi has twice the number of nuclei as another sample S2 which has an activity of 10μCi. The half lives of S1 and S2 are : (1) 4 : 1 (2) 1 : 4 (3) 1 : 2 (4) 2 : 1
What This Question Tests
This question tests the relationship between activity, decay constant, number of nuclei, and half-life for radioactive samples.
Concepts Tested
Formulas Used
A = λN
λ = ln(2)/T_½
📚 NCERT Sections This Tests
13.4 — Obtain Approximately The Ratio Of The Nuclear Radii Of The Gold Isotope
Physics Class 12 · Chapter 13
13.4 Obtain approximately the ratio of the nuclear radii of the gold isotope 197 79 Au and the silver isotope 10747 Ag .
3.17 — During Nuclear Explosion, One Of The Products Is 90Sr With Half-Life Of
Chemistry Class 11 · Chapter 3
3.17 During nuclear explosion, one of the products is 90Sr with half-life of 28.1 years. If 1mg of 90Sr was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically.
13.2 — Obtain The Binding Energy Of The Nuclei 5626Fe And 20983 Bi In Units Of
Physics Class 12 · Chapter 13
13.2 Obtain the binding energy of the nuclei 5626Fe and 20983 Bi in units of MeV from the following data: m ( 5626Fe ) = 55.934939 u m ( 20983 Bi ) = 208.980388 u
📋 Question Details
- Chapter
- Nuclei
- Topic
- Radioactivity
- Year
- 2018
- Shift
- 16 Apr Online
- Q Number
- Q28
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 13: Nuclei
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