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As an electron makes a transition from a...

As an electron makes a transition from an excited state to the ground state of hydrogen-like atom`//`ion:

A

its kinetic energy increases but potential energy and total energy decreases

B

kinetic energy, potential energy and total energy decreases

C

kinetic energy decreases, potential energy increases but total energy remains same

D

kinetic energy and total energy decreases but potential energy increases

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The correct Answer is:
A
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TARGET PUBLICATION-ATOMS, MOLECULES AND NUCLEI -Competitive Thinking
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  2. An electron in an atom jumping from 3rd orbit to 2nd orbit emits radia...

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  6. Binding energy of a nucleus is equivalent to

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  7. In helium nucleus, there are.

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  8. In nuclear reaction .(4)Be^(9)+.(2)He^(4)rarr.(6)C^(12)+X,X will be

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  9. The ratio of nuclear volume to the atomic volume is

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  10. Two nuclei have their mass numbers in the ratio of 1:3. The ratio of t...

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  11. The size of atomic nucleus is

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  12. An element X decays into element Z by two -steps process X to Y + He...

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  13. Mp depends the mass of a proton and Mn that of a neutron. A given nucl...

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  14. The radius of nucleus is:

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  15. If radius of the .(13)^(27)Al nucleus is taken to be R(AI), then the r...

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  16. If the nucleus of .13Al^27 has a nuclear radius of about 3.6 fm, then ...

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  17. The radius of germanium (Ge) nuclide is measured to be twice the radiu...

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  18. If the nuclear radius of .^27 A1 is 3.6 Fermi, the approximate nuclear...

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  19. A nucleus ruptures into two nuclear parts, which have their velocity r...

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  20. The average binding energy per nucleon is maximum for the nucleus

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