Home
Class 10
PHYSICS
Consider 3rd orbit of He+ (Helium), usin...

Consider 3rd orbit of He+ (Helium), using non- relativistic approach, the speed of electron in this orbit will be [given `K = 9 × 10^9` constant, `Z=2` and h (Planck's Constant)=`6.6 × 10^-34 J s`]

A

`1.46 × 10^6` `m``/``s`

B

`0.46 × 10^6` `m``/``s`

C

`3.0 × 10^8` `m``/``s`

D

`2.92 × 10^6` `m``/``s`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR PHYSICS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWER (STATE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OR FALSE : IF FALSE CORRECT THE STATEMENT)|22 Videos

  • NUCLEAR PHYSICS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWER (MATCH THE FOLLOWING)|6 Videos

  • NUCLEAR PHYSICS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWER (CHOOSE THE CORRECT ANSWER)|67 Videos

  • MODEL QUESTION PAPER HIGHER LEVEL

    SURA PUBLICATION|Exercise Subjective Questions|25 Videos

  • OPTICS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTIONS & ANSWER (Higher Order Thinking Skills (HOTS))|6 Videos

Similar Questions

Explore conceptually related problems

Calculate the momentum of electrons if their wavelengths is 2Å . Given : h = 6.626 xx 10^(-34) Js and m = 9.1 xx 10^(-31) kg

The de-Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 ms^(-1) is approximately (planck's constant, h = 6.63 xx 10^(-34) Js)

The ionization energy of hydrogen atom in the ground state is 1312 kJ "mol"^(-1) . Calculate the wavelength of radiation emitted when the electron in hydrogen atom makes a transition from n = 2 state to n = 1 state (Planck’s constant, h = 6.626 xx 10^(-34) Js , velocity of light, c = 3 xx 10^8 m s^(-1) , Avogadro’s constant, N_A = 6.0237 xx 10^23 "mol"^(-1) ).

Find the (i) angular momentuum (ii) velocity of the electron in the 5^(th) orbit of hydrogen atom (h = 66 xx 10^(-34) Js, m = 9.1 xx 10^(-31) kg)

The kinetic energy of sub-atomic particle is 5.85 xx 10^(-25) J. Calculate the frequency of the particle wave. (Planck’s constant, h = 6.626 xx 10^(-34) Js)

Calculate the uncertainty in the velocity of a wagon of mass 3000kg whose position is known to an accuracy of ± 10 pm (Planck’s constant = 6.626 xx 10^(−34) Kg m^2 s^(-1) .

A moving electron has 4.55 xx 10^(-25) joules of kinetic energy. Calculate its wavelength (mass = 9.1 xx 10^(-31) kg and h = 6.626 xx 10^(-34) kg m^2 s^(-1) ).

In a chamber, a uniform magnetic field of 6.5G ( 1G = 10^(-4) T) is . Maintained . An electron is shot into field witha speed of 4.8 xx 10^(6) ms^(-1) normal to the field . Explain why the path of the electron is a circle. Determine the radius of the circular orbit. (e = 1.6 xx 10^(-19) C, m = 9.1 xx 10^(-31) kg)

SURA PUBLICATION-NUCLEAR PHYSICS-ADDITIONAL QUESTIONS & ANSWER (FILL IN THE BLANKS)
  1. Hydrogen atom in ground state is excited by a monochromatic radiation ...

    Text Solution

    |

  2. I Becequerel= disintegrations per second.

    Text Solution

    |

  3. Consider 3rd orbit of He+ (Helium), using non- relativistic approach, ...

    Text Solution

    |

  4. Curie is defined as the quantity of radioactive substance which gives ...

    Text Solution

    |

  5. The activity of one gram of radium is equal to .

    Text Solution

    |

  6. Artificial radioactivity was discovered by

    Text Solution

    |

  7. In the spectrum of hydrogen, the ratio of the longest wavelength in th...

    Text Solution

    |

  8. Electron in hydrogen atom first jumps from third excited state to seco...

    Text Solution

    |

  9. In the hydrogen spectrum, the ratio of the longest wavelength in the B...

    Text Solution

    |

  10. In the spectrum of hydrogen, the ratio of the longest wavelength in th...

    Text Solution

    |

  11. The radioactive isotope used to diagnose anaemia is .

    Text Solution

    |

  12. An electron of a stationary hydrogen atom passes from the fifth energy...

    Text Solution

    |

  13. The transition from the state n=3 to n=1 in a hydrogen like atom resul...

    Text Solution

    |

  14. The radioactive isotope used in estimating the age of specimens is .

    Text Solution

    |

  15. The wavelength of the first line of Lyman series for hydrogen atom is ...

    Text Solution

    |

  16. An electron in the hydrogen atom jumps from excited state n to the gro...

    Text Solution

    |

  17. Out of the following which one is not a possible energy for a photon t...

    Text Solution

    |

  18. The energy of a hydrogen atom in the ground state is -13.6 eV. The ene...

    Text Solution

    |

  19. The ionization energy of the electron in the hydrogen atom in its grou...

    Text Solution

    |

  20. The process in which of one element is converted into nucleus of anot...

    Text Solution

    |