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A radioactive sample has initial concent...

A radioactive sample has initial concentration `N_(0)` of nuclei. Then,

A

The number of undecayed nuclei present in the sample decays exponentially with time

B

The acvitiy (R) of the sample at any instant is directly proportional to the number of undecayed nuclei present in the sample at that time

C

The number of decayed nuclei grows linearly with time

D

The number of decayed nuclei grows exponentially with time

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A, B, D
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RESNICK AND HALLIDAY-THE NUCLEUS-PRACTICE QUESTIONS (More than One Correct Choice Type)
  1. If A,Z and N denote the mass number, the atomic number, and the neutro...

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  2. The decay constant of a radioactive substance is 0.173 year^(-1). The...

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  3. Which of the following statements are correct?

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  4. A radioactive sample has initial concentration N(0) of nuclei. Then,

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  5. Assume that the nuclear binding energy per nucleon (B/A) versus mass n...

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  6. From the following equations, choose the possible nuclear reactions

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  7. In the options given below, let E denote the mass energy of a nucleus ...

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  8. If m(p) and m(n) are masses of proton and neutron respectively and M(1...

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  9. Which of the following are evidences for the existence of neutrons in ...

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  10. The instability of the nucleus can be due to various causes. An unstab...

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  11. A fraction f(1) of a radioactive sample decays in one mean lie and a f...

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  12. A large population of radioactive nucleus starts disintegrating at t=0...

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  13. In beta-decay, the Q-value of the process is E. Then

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  14. Consider the following nuclear reactions and select the correct statem...

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  15. The essential distinction between X - rays and gamma - rays is that

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  16. When nucleus of an electrically neutral atom undergoes a radioactive d...

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  17. Which of the following is an assumption in Carbon dating process?

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  18. Both under fission and nuclear fusion release enormus energy. When a u...

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  19. The total binding energy of an alpha particle (""(2)^(4)He) is 24.4 Me...

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  20. Which of the following (s) is (are) correct?

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