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When an electron in hydrogen atom revolv...

When an electron in hydrogen atom revolves in stationary orbit, it

A

does not radiate light though its velocity changes

B

does not radiate light and velocity remains unchanged

C

radiates light but its velocity is unchanged

D

radiates light with the change of energy

Text Solution

Verified by Experts

The correct Answer is:
A
According to Bohr's quantisation principle, if an electron revolves in a stationary orbit which has fixed energy, will not radiate light. Since, the direction of velocity changes, so we can say its velocity changes.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ATOMS, MOLECULES AND NUCLEI -MHT CET Corner
  1. When an electron in hydrogen atom revolves in stationary orbit, it

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  2. An electron of mass m has de broglie wavelength lamda when accelerated...

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  3. For Balmer series, wavelength of first line is lamda(1) and for Bracke...

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  4. For the hydrogen atom, the energy of radiation emitted in the transiti...

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  5. The rartio ("in SI units") of magnetic dipole moment to that of the an...

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  6. If, an electron in hydrogen atom jumps from an orbit of lelvel n=3 to ...

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  7. The de-Broglie wavelength of an electron in 4th orbit is (where, r=rad...

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  8. Ratio of longest wavelengths corresponding to Lyman and Balmer series ...

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  9. The half-life of a radioactive isotope X is 20 yr. It decays to anothe...

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  10. A certain mass of hydrogen is changed to helium by the process of fusi...

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  11. When the kinetic energy of an electron is increased , the wavelength o...

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  12. Orbital acceleration of electron is

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  13. As par Bohr model, the minimum energy (in eV) required to remove an el...

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  14. An electron moves in Bohr's orbit. The magnetic field at the centre is...

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  15. The de-Broglie wavelength of an electron in the ground state of the hy...

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  16. The product of linear momentum and angular momentum of an electron of ...

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  17. The orbital frequency of an electron in the hydrogen atom is proportio...

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  18. The radius of hydrogen atom in its ground state is 5.3 xx 10^(-11)m. A...

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  19. If an electron is revolving around the hydrogen nucleus at a distance ...

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  20. If M(O) is the mass of an oxygen isotope ""(8)O^(17),M(p) and M(n) are...

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