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A free neutron decays spontaneously into...

A free neutron decays spontaneously into

A

a proton, an electron and anti-neutrino

B

a proton, an electron and a neutrino

C

a proton and electron

D

a proton and electron, a neutrino and an anti-neutrino

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The correct Answer is:
A
Protons cannot be emitted by radioactive substances during their decay.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ATOMS, MOLECULES AND NUCLEI -Exercise 1 (TOPICAL PROBLEMS)
  1. The half-life of the isotope .(11)Na^(24), is 15h. How much time does ...

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  2. In aluminium extraction by the Baeyer's process, hv=e^(+)+e^(-) is kno...

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  3. A free neutron decays spontaneously into

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  4. In the nuclear reaction ""(7)N^(14)+X to ""(6)C^(14)+""(1)H^(2), the X...

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  5. ""(92)U^(238) on absorbing a neutron goes over to ""(92)U^(239). This ...

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  6. IF in a nuclear fission, piece of uranium of mass 5.0g is lost, the en...

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  7. The energy released by the fission of one uranium atom is 200 MeV. The...

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  8. An alpha-particlee of mass m suffers one dimensional elastic collision...

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  9. The operation of a nuclear reactor is said to be critical, if the mult...

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  10. On bombardment of U^235 by slow neutrons, 200 MeV energy is released. ...

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  11. The binding energies of the atoms of elements A and B are E(a) and E(b...

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  12. If 200 MeV of energy is released in the fission of 1 nucleus of ""(92)...

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  13. If 200 MeV energy is released in the fission of a single nucleus of .(...

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  14. When a sample of solid lithium is placed in a flask of hydrogen gas th...

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  15. What is de-Broglie wavelength of the electron accelerated through a po...

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  16. What is de-Broglie wavelength of the electron accelerated through a po...

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  17. In Davisson-Germer experiment maximum intensity is observed at

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  18. The energy of a photon is equal to the kinetic energy of a proton. If ...

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  19. If the linear momentum of a particle is 2.2xx10^(4)kg-ms^(-1), then wh...

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  20. An electron is accelerated under a potential difference of 182 V. the ...

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