Home
Class 12
PHYSICS
If a star converts all helium in its cor...

If a star converts all helium in its core to oxygen then energy released per oxygen nuclei is
[Mass of He = 4.0026 amu, Mass of O = 15.9994 amu]

A

`7.6 MeV`

B

`56.12 MeV`

C

`10.24 MeV`

D

`23.4 MeV`

Text Solution

Verified by Experts

The correct Answer is:
C
`4(._(2)He^(4))=._(8)O^(16)`
Mass defect
`Deltam={4(4.0026)-15.9994}=0.011 am u`
`:.` Energy released per oxygen nuclei
`=(0.011)(931.48) MeV=10.24 MeV`
Promotional Banner

Topper's Solved these Questions

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise MCQ s|8 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Comprehension #1|3 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Exercise - 04[A]|25 Videos

  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|24 Videos

  • TEST PAPER

    ALLEN|Exercise PHYSICS|4 Videos

Similar Questions

Explore conceptually related problems

If a star can convert all the He nuclei completely into oxygen nuclei. The energy released per oxygen nuclei is (Mass of the helium nucleus is 4.0026 amu and mass of oxygen nucleus is 15.9994 amu)

If a star can convert all the He nuclei completely into oxygen nuclei. The energy released per oxygen nuclei is (Mass of the helium nucleus is 4.0026 amu and mass of oxygen nucleus is 15.9994 amu)

Helium nuclei combine to form an oxygen nucleus. The energy released in the reaction is if m_(O)=15.9994 "amu" and m_(He)=4.0026 "amu"

Calculate the binding energy per nucleon for an alpha particle (containing two protons and two neutrons) whose actual mass is 4.0028 amu (mass of proton = 1.00759 amu, mass of nuetron = 1.00898 amu).

Calculate the mass defect and binding energy per nucleon for an alpha particle (containing two protons and two neutrons) whose actual mass is 4.0028 amu (mass of proton = 1.00759 amu, mass of nuetron = 1.00898 amu).

What is the binding energy per nucleon in ._2He^4 Given , Mass of ._2He^4 =4.002604 amu Mass of proton =1.007825 amu Mass of neutron =1.008665 amu

What is the binding energy per nucleon in ._2He^4 Given , Mass of ._2He^4 =4.002604 amu Mass of proton =1.007825 amu Mass of neutron =1.008665 amu

Calculate the net energy released or absorbed in converting 1 gram.of oxygen atoms into O^(2-) ions.

Calculate the packing fraction of alpha -particle from the following data : Mass of helium nucleus =4.0028 amu Mass of free proton =1.00758 amu Mass of free neutron =1.00897 amu

Consider a nuclear reaction A+B rarr C . A nucleus A moving with kinetic energy of 5 MeV collides with a nucleus B moving with kinetic energy of 3MeV and forms a nucleus C in exicted state. Find the kinetic energy of nucleus C just after its fromation if it is formed in a state with excitation energy 10 MeV . Take masses of nuclei of A,B and C as 25.0,10.0,34.995 amu , respectively. (1amu= 930 MeV//c^(2)) .

ALLEN-SIMPLE HARMONIC MOTION-Exercise-05(B)
  1. The figure shows the variation of pholo current with for a photo-sensi...

    Text Solution

    |

  2. A photon and an electron have equal energy E, the ratio (lamda"photon"...

    Text Solution

    |

  3. After 280 days, the activity of a radioactive sample is 6000 dps. The ...

    Text Solution

    |

  4. A photon collides with a stationary hydrogen atom in ground state inel...

    Text Solution

    |

  5. Kalpha wavelength emitted by an atom of atomic number Z=11 is lambda. ...

    Text Solution

    |

  6. If a star converts all helium in its core to oxygen then energy releas...

    Text Solution

    |

  7. Half-life of a radioactive substance A is 4 days. The probability that...

    Text Solution

    |

  8. The largest wavelength in the ultraviolet region of the hydrogen spec...

    Text Solution

    |

  9. Electrons of mass m with de-Broglie wavelength lambda fall on the targ...

    Text Solution

    |

  10. In the options given below, let E denote the rest mass energy of a nuc...

    Text Solution

    |

  11. Which one the following statement is wrong , in the context of X - ray...

    Text Solution

    |

  12. A radioactive sample S1 having an activity of 5muCi has twice the numb...

    Text Solution

    |

  13. Photoelectric effect experiments are performed using three different m...

    Text Solution

    |

  14. A pulse of light of duration 100 ps is absorbed completely by a small ...

    Text Solution

    |

  15. if lambda(Cu) is the wavelength of Kalpha, X-ray line fo copper (atomi...

    Text Solution

    |

  16. A metal surface is illuminated by light of two different wavelengths 2...

    Text Solution

    |

  17. In a historical experiment to determine Planck's constant, a metal sur...

    Text Solution

    |

  18. The electrostatic energy of Z protons uniformly distributed throughout...

    Text Solution

    |

  19. As accident in a nuclear laboratory resulting in deposition of a certa...

    Text Solution

    |

  20. Light of wavelength lambda(ph)falls on a cathode plate inside a vacuum...

    Text Solution

    |