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According to Bohr's theory of hydrogen a...

According to Bohr's theory of hydrogen atom

A

There is only fixed set of allowed orbitals for the electron

B

The allowed orbitals of the electrons are elliptical in shape

C

The moment of an electron from one allowed to another allowed orbital is forbidden

D

No light is emitted as long as the electron remains in an allowed orbital

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The correct Answer is:
D
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According to Bohr's Model of hydrogen atom

NARAYNA-ATOMIC STRUCTURE-All Questions
  1. The velocity of an electron in the first Bohr orbit of hydrogen atom i...

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  2. Energy of electron moving in the second orbit of He^(+) ion is

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  3. According to Bohr's theory of hydrogen atom

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  4. The ratio of radius of 2nd and 3rd Bohr orbit is

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  5. According to Bohr's theory, which one of the following values of angul...

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  6. The mass of the electrons 9.8 xx 10^(-28) gram and uncertainty in the ...

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  7. The velocity of an electron with de Broglie wavelength of 1.0 xx 10^(2...

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  8. The wave length of a electron with mass 9.1 xx 10^(-31)kg and kinetic ...

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  9. A cricket ball of 0.5kg moving with a velocity of 100 m s^(-1). The ...

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  10. A microscope using suitable photons is employed to an electron in an...

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  11. The mass of photon moving with the velocity of 3 xx 10^(8)m//sec with ...

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  12. If the velocity of electron in Bohr's first orbit is 2.19 xx 10^(6)ms^...

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  13. Uncertainity in position of a particles of 25 gram in space is 10^(-5)...

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  14. An electron, a proton and an alpha particle have KE of 16E, 4E and E r...

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  15. The wavelengths of electron waves in two orbits is 3:5. The ratio of k...

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  16. The probability density plots of 1 s and 2s orbitals are given in figu...

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  17. The maximum number of electrons with spin value +1//2 in the orbital w...

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  18. Which of the following combinations of quantum numbers is possible for...

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  19. The total number of electrons present in all s orbitals, all the p orb...

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  20. The quatum numbers +(1)/(2) and -(1)/(2) for the electron spin represe...

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