Home
Class 12
PHYSICS
In one average-life,...

In one average-life,

A

half the active nuclei decay

B

less than half the active nuclei decay

C

more than half the active nuclei decay

D

all the nuclei decay

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THE NUCLEOUS

    HC VERMA ENGLISH|Exercise Objective 2|10 Videos
  • THE NUCLEOUS

    HC VERMA ENGLISH|Exercise Exercise|53 Videos
  • THE NUCLEOUS

    HC VERMA ENGLISH|Exercise Work out Example|15 Videos
  • SPEED OF LIGHT

    HC VERMA ENGLISH|Exercise Question for short Answer|5 Videos
  • THE SPECIAL THEORY OF RELATIVITY

    HC VERMA ENGLISH|Exercise Short answer|2 Videos

Similar Questions

Explore conceptually related problems

The decay constant of a radioactive sample is lambda . The half-life and the average-life of the sample are respectively

The decay constant of a radioactive sample is lambda . The half-life and the average-life of the sample are respectively

Put the correct symbols in the following statements : I. The average life span of a crow ........ then the average life span of a parrot . II. The average life span of a rose plant ...... then the average life span of a rice plant. III. The average life span of a cow .... than the average life span of a crocodile. IV.The average life span of a banyan tree ..... then the average life span of a banana tree.

A: Every sixth person in the world is an Indian. R: Life expectancy depends upon average life span.

A. Life expectancy is based on average life span. R. It is the age at which half the population still survives.

What percentage of decay takes place in the average life of a substance ?

If the average life of a person is taken as 100 s the age of the universe on this scale is of the order

Indium -112 is radioactive and has a very short half-life ( t_(1//2)=14 min). Its decay constant and average life are repectively:

The half-life of .^198Au is 2.7 days . Calculate (a) the decay constant, (b) the average-life and (c) the activity of 1.00 mg of .^198Au . Take atomic weight of .^198Au to be 198 g mol^(-1) .

A frequency distribution of the life times of 400 T.V. picture tubes tested in a tube company is given below. Find the average life of tube. Life Time (in hrs) Frequency Life time (in hrs) Frequency 300-399 400-499 500-599 600-699 700-799 14 46 58 76 68 800-899 900-999 1000-1099 1100-1199 62 48 22 6

HC VERMA ENGLISH-THE NUCLEOUS-Objective 1
  1. The mass of a neutral carbon atom in ground state is

    Text Solution

    |

  2. The mass number of a nucleus is equal to

    Text Solution

    |

  3. As compared to ^12C atom, ^14C atoms has

    Text Solution

    |

  4. The mass number of a nucleus is equal to

    Text Solution

    |

  5. The graph of 1n (R/R0) versus 1n A (R = radius of a nucleus and A = it...

    Text Solution

    |

  6. Let Fpp, Fpn and Fnn denote the magnitudes of the nuclear force by a p...

    Text Solution

    |

  7. Let Fpp, Fpn and Fnn denote the magnitudes of the nuclear force by a p...

    Text Solution

    |

  8. Two protons are kept at a separation of 10 nm. Let Fn and Fe be the nu...

    Text Solution

    |

  9. As the mass number A increases, the binding energy per nucleon in a nu...

    Text Solution

    |

  10. Which of the following is a wrong description of binding energy of a n...

    Text Solution

    |

  11. In one average-life,

    Text Solution

    |

  12. In a radioactive decay, neither the atomic number nor the mass number ...

    Text Solution

    |

  13. During a negative beta decay,

    Text Solution

    |

  14. A freshly prepared radioactive source of half-life 2 h emits radiation...

    Text Solution

    |

  15. The decay constant of a radioactive sample is lambda. The half-life an...

    Text Solution

    |

  16. An alpha particle is bombarded on ^14N. As a result, a ^17O nucleus is...

    Text Solution

    |

  17. Ten grams of ^57 Co kept in an open container beta-decays with a half-...

    Text Solution

    |

  18. Free ^238 U nuclei kept in a train emit alpha particles. When the trai...

    Text Solution

    |

  19. During a nuclear fission reaction,

    Text Solution

    |