The count rate of a radioactive sample falls from 4.0 × 10 6 s –1 to 1.0 × 10 6 s –1 in…
Physics · Class 12 · CBSE — Nuclei
The count rate of a radioactive sample falls from 4.0 × 106 s–1 to 1.0 × 106 s–1 in 20 hours. What will be the count rate after 100 hours from begining?
- 3.91 × 103 s–1
- 3.91 × 102 s–1
- 3.91 × 104 s–1
- 3.91 × 106 s–1
Answer
(A) 3.91 × 10 3 s –1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- M p denotes the mass of a proton and M n that of a neutron. A given nucleus, of binding energy B, contains Z…
- Assertion (A): Nuclear fission reactions are responsible for energy generation in the Sun. Reason (R): Light…
- Two nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be
- A sample of radioactive material has mass m , decay constant λ, molecular weight M and Avogadro constant N A…
- Which of the following statements is not true for nuclear forces?
- 1 mg radium has 2.68 × 10 18 atoms. Its half life is 1620 years. How many radium atoms will disintegrate from…
- The reaction responsible for the production of light energy from the sun is
- When two nuclei (A 10) fuse together to form a heavier nucleus, the: