Home
Class 12
PHYSICS
Calculate in how many months , (3/4)^(th...

Calculate in how many months , `(3/4)^(th) `of the substance will dacay, If half-life of the radioactive substance is 2 months.

A

3 months

B

4 months

C

8 months

D

12 months

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PRACTICE PAPPER

    NCERT FINGERTIPS|Exercise Practice Paper 2|50 Videos

  • NUCLEI

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • RAY OPTICS AND OPTICAL INSTRUMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

The half-life of a radioactive substance is 10 days. This means that

The relationship between decay constant lamda and half-life T of a radioactive substance is

A radioactive substance decays to ((1)/(16))^(th) of its initial activity in 80 days. The half life of the radioactive substance expressed in days is …….

N atoms of a radioactive substance emit n alpha -particles per second. The half life of the radioactive substance is

At t=0 , number of radioactive nuclei of a radioactive substance are x and its radioactivity is y. Half-life of radioactive substance is T. Then,

If half life of a radioactive substnace is 1 month, then which of these are true ?

NCERT FINGERTIPS-PRACTICE PAPPER-Practice Paper 3
  1. Which one of the following is a possible nuclear reaction ?

    Text Solution

    |

  2. A 5 W source emits monochromatic light of wavelength 5000 Å. When plac...

    Text Solution

    |

  3. Calculate in how many months , (3/4)^(th) of the substance will dacay,...

    Text Solution

    |

  4. Which of the following statements is not true?

    Text Solution

    |

  5. The transfer ration of a transistor is 50. The input resistance of th...

    Text Solution

    |

  6. Given below are four logic gates symbol (figure). Those for OR, NOR an...

    Text Solution

    |

  7. An AND gate

    Text Solution

    |

  8. The VHF band ranges from

    Text Solution

    |

  9. The circular plates A and B of a parallel plate air capacitor have a d...

    Text Solution

    |

  10. If the input and output power of an optical fibre of length 150 m are ...

    Text Solution

    |

  11. A thin prism of angle 15^(@) made of glass of refractive index mu(1)=1...

    Text Solution

    |

  12. A beam of light of wavelength 600 nm from a distant source falls on...

    Text Solution

    |

  13. A pure inductor L, a capactior C and a resistance R are connected acro...

    Text Solution

    |

  14. Two radioactive materials X(1) and X(2) have decay constant 11 lambda ...

    Text Solution

    |

  15. In the given circuit, the potential difference between A and B is

    Text Solution

    |

  16. Two capacitors C(1) = 2mu F and C(2) = 1 muF are charged to same poten...

    Text Solution

    |

  17. A proton has kinetic energy E = 100 keV which is equal to that of a ph...

    Text Solution

    |

  18. A particle of charge q and mass m starts moving from the origin under ...

    Text Solution

    |

  19. A transformer with efficiency 80% works at 4 kW and 100 V. If the seco...

    Text Solution

    |

  20. A current of 0.5 A is passed through the coil of a galvanometer havi...

    Text Solution

    |