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The ratio of kinetic energy and potentia...

The ratio of kinetic energy and potential energy of an electrron in an orbit is equato to :

A

`0`

B

`-0.5

C

`-2`

D

`prop`

Text Solution

Verified by Experts

The correct Answer is:
B
`(KE)/(PE) = (-e^2 //2r)/(e^2//r) = - 1/2`.
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P BAHADUR-ATOMIC STRUCTURE-Exercise 3A
  1. For which of the following process enrgy is absorbed :

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  2. An ion (Mn^(a+)) has the magnetic moment equal to 4.9 B.M What is the ...

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  3. The ratio of kinetic energy and potential energy of an electrron in an...

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  4. The angular momentum of elerctro of H-atom is proprtional to :

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  5. The total number of electron is 1. g CH4 are :

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  6. The probability of finding elercrtron at a distance r form the nucleus...

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  7. In aufbau principle, the word aufbau represents :

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  8. Two elecrtrons A and B in an atom have the following set of quantum nu...

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  9. The first obrital of H or H like atom is represencted by psi = 1/( s...

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  10. Total numbr of nodal planes aresame in :

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  11. The change in molar enrgy noticed during atomic transimission of 5 her...

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  12. The angular momentum of an electron in a orbital is given as …………

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  13. The first atom with obncomplete d-shell is :

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  14. Six valence electrons of oxygen are labelled as AB in 2s orbitals and ...

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  15. The correct Schrodingers's wave equation for an electron with e as tat...

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  16. For an elecrron in g-orbital what is correct ?

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  17. The maxium sum of number of neutrons and protons in an isotope of hydr...

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  18. The ratio of speed of gamma-rays and X-rays is :

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  19. Which of the following sets of quantum numbers represents an imposs...

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  20. Two elements in I transition series have four unparired electrons in t...

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