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A nucleus with mass number m and at...

A nucleus with mass number m and atomic number n, emits one `alpha-` particle and one `beta-` particle . The mass number and atomic number of the resulting nucleus will respectively be-

A

`(m-2) , n`

B

`(m-4), (n-1)`

C

`(m-4) , (n-2)`

D

`(m+4) ,(n-1)`

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The correct Answer is:
B
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MOTION-RADIOACTIVITY & NUCLEAR PHYSICS-Exercise -1
  1. During a negative beta decay,

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  2. In a given magnetic field for the particle less of same velocit...

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  3. A nucleus with mass number m and atomic number n, emits one al...

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  4. The intensity of gamma- from a source (I(0)) reduces to I(0)//8 af...

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  5. The inteisity of gamma radiation from a given source is I(0) . ...

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  6. The graph between remaining radioactive atoms and time for a r...

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  7. The following is not and application of radioactive material -

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  8. In which of the following we don't use a radioactive isotope :

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  9. The reason of origin of gamma- rays is

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  10. A radioactive material of half-life T was kept in a nuclear reactor at...

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  11. Let u denote one atomic unit .one atom of an element of mass number A ...

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  12. The surface area of a nucleus varies with mass number A as

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  13. In the nuclear reaction .92 U^238 rarr .z Th^A + .2He^4, the values of...

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  14. Among gravitational, electrostatic and nuclear forces, the two attract...

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  15. the radius of ""(29)Cu^(64) nucleus in fermi is (given ,r(0) 1.2xx1...

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  16. In most stable nuclei neutron number N and proton number Z has the rel...

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  17. The correct relation between the packing fraction f and mass n...

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

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  19. The correct statement about nuclear forces is

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  20. The graph between the binding energy per nucleon (E) and atomic mass n...

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