Home
Class 12
PHYSICS
Mention the different units of radioacti...

Mention the different units of radioactivity.

Text Solution

Verified by Experts

Becquereal (Bq), Curie (Ci), Rutherford (Rf)
1 Bq = 1 disintegration/sec
`1 Ci = 3.7 xx 10^(10)` desintegration/sec
`1 Rf= 10^6` disintegration/sec.
Promotional Banner

Topper's Solved these Questions

  • NUCLEI

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION|2 Videos

  • NUCLEI

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION(ASSIGNMENT)|9 Videos

  • NUCLEI

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|18 Videos

  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|28 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|26 Videos

Similar Questions

Explore conceptually related problems

Give the SI unit of radioactivity .

Mention the different types of biofertilizers.

NEW JOYTHI PUBLICATION-NUCLEI-EVALUATION QUESTIONS AND ANSWERS
  1. A nuclear event is shown in the diagram. a. Name the nuclear phen...

    Text Solution

    |

  2. The radioacitve decay of an element is shown in the graph. a. What i...

    Text Solution

    |

  3. Mention the different units of radioactivity.

    Text Solution

    |

  4. Why are neutrons very effective as bombarding particles?

    Text Solution

    |

  5. ""(72)^(180)A overset(a)(rarr)B overset(beta)(rarr)C overset(alpha)(ra...

    Text Solution

    |

  6. From the above table we can see that the ratio of their atomic masses ...

    Text Solution

    |

  7. a. What is positron ? " " b. What is its charge ?

    Text Solution

    |

  8. What is " " i. neutrino " " ii. antineutrino? Explain with exa...

    Text Solution

    |

  9. alpha-particles have a high ionizing power. Justify your answer.

    Text Solution

    |

  10. a. Are the equations of nuclear reactions such as ""(7)^(14)N + ""(2)^...

    Text Solution

    |

  11. Complete the nuclear reaction a. ""(5)^(10)B + ………… to ""3^7Li + ""(...

    Text Solution

    |

  12. a. Which is more stable , ""(3)^(7)Li " or " ""(3)^(4)Li ? b. Give...

    Text Solution

    |

  13. What is meant by chain reaction ?

    Text Solution

    |

  14. a. Are heavy nuclei stable or unstable ? b. Give reason.

    Text Solution

    |

  15. You are given two nuclides ""(3)^(7)X and ""(3)^(4)Y. a. Are they th...

    Text Solution

    |

  16. What is the ratio of nuclear densities of two nucleus having mass num...

    Text Solution

    |

  17. a. Give the expression for the radius of a nucleus. b. What is the r...

    Text Solution

    |

  18. a. Is free neutron a stable particle? b. Give reason.

    Text Solution

    |

  19. a. Give two radioacitve elements which are not formed in observable qu...

    Text Solution

    |

  20. What is positive beta - emission?

    Text Solution

    |