Home
Class 11
CHEMISTRY
If the uncertainty in the position of a...

If the uncertainty in the position of an electron is zero the nucertainty in its momentum be

A

`lt (h)/(4pi)`

B

`gt(h)/(4pi)`

C

Zero

D

infinity

Text Solution

Verified by Experts

The correct Answer is:
D
`Delta x xx Delta p ge h..4pi`
If `Delta x = 0 ` then `Delta p` will be unifinite
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    CENGAGE CHEMISTRY|Exercise Concept Applicationexercise(4.3)|19 Videos

  • ATOMIC STRUCTURE

    CENGAGE CHEMISTRY|Exercise Concept Applicationexercise (4.1)|11 Videos

  • APPENDIX - INORGANIC VOLUME 1

    CENGAGE CHEMISTRY|Exercise chapter-7 Single correct answer|1 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    CENGAGE CHEMISTRY|Exercise Archives Subjective|15 Videos

Similar Questions

Explore conceptually related problems

A german physicist gae a principle about the uncertainties in simultaneous measurement of position and momentum of small particles. According to that physicist. It is impossible to measure simultaneously the position and momentum of small particle with absolute accuracy or certainty. if an attempt is made to measure any one of these two quantities with higher accuracy, the other becomes less accurate. The produce of the uncertainty in position (Deltax) and uncertainty momentum (Delta p) is always constant and is equal to or greater than h//4pi , where h is Planck's constant i.e. (Deltax ) (Deltap) ge (h)/(4pi) If uncertainty in the position of an electron is zero, the uncertainty in its momentum would be

It is not possible to determine preciselt both the position and momentum (or velocity) of a small moving particle such as electron, proton etc. This is known as Heisenber uncertainty principle. The mathemactical form of this principle is : Delta x.Delta p ge (h)/(4pi) (constant) However this principle is irrevalent in case of bigger particles such as a cup, ball, car etc., that we come across in our daily life. If the uncertainty in position of the electron is zero, the uncertainty in its momentum would be

If uncertainty in possition of electron is zero, then the uncertainty in its momentum would be ……….

Calculate the uncertainty in the position of an electron if the uncertainty in its velocity is 5.77xx10^(5) m s^(-1) .

Calculate the uncertainty in the position of an electron if uncertainty in its velocity is (i) 0.001 % (ii) Zero. (The mass of electron = 9.1 xx 10^(-31) kg , velocity of electron = 300 ms^(-1))

Calculate the uncertainty in the velocity of an electron of the uncertainty in its position is of the order of 1 Å

In mathematical terms, Heisenberg's principle states that the uncertainty in the electron's position, Deltax , times the uncertainty in its momentum, Deltapx , is_____the quantity h//4pi . (i) equal to (ii) less than (iii) greater than

CENGAGE CHEMISTRY-ATOMIC STRUCTURE-Concept Applicationexercise(4.2)
  1. The uncertainty in the position of a buller weight 20 g is +- 10^(-4) ...

    Text Solution

    |

  2. Using Bohr's model , calculate the wavelength of the radiation emitt...

    Text Solution

    |

  3. What is the maximum number of emission lines when the excited electro...

    Text Solution

    |

  4. Calculate the radius of bohr's third orbit in hydrogen atom.

    Text Solution

    |

  5. The energy associatied with the first orbit in the hydrogen atom is -...

    Text Solution

    |

  6. What transition in the hydrogen spectrum would have the same wavelen...

    Text Solution

    |

  7. Calcultte the enrgy required for the process , He^+ (g) rarr He^(2+...

    Text Solution

    |

  8. Explain why the uncertainty principle has significated when applied to...

    Text Solution

    |

  9. What is the minimum product of the uncertainty in position and the ...

    Text Solution

    |

  10. Why can't we evercome the uncertainty predicted by hesisenherg prin...

    Text Solution

    |

  11. A single electron orbits around a stationary nucleus of charge + Ze wh...

    Text Solution

    |

  12. Find the energy released (in erg) when 2.0 g atom of hydrogen undergoe...

    Text Solution

    |

  13. Stationary He^(o+) ion emits a photon corresponding to the first line ...

    Text Solution

    |

  14. The ratio of energy of photon of lambda = 2000 Å to that of lambda = 4...

    Text Solution

    |

  15. Bohr's model can explain

    Text Solution

    |

  16. The wavelength of the first Balmer line Li^(2+) ion is 136800 cm^(-1)...

    Text Solution

    |

  17. If the uncertainty in the position of an electron is zero the nucerta...

    Text Solution

    |

  18. If the following mater travel with equal velocity the longest wavele...

    Text Solution

    |

  19. Which of the following postutales does not belong to Bohr's model o...

    Text Solution

    |

  20. The Lyman series of hydrogen spectrom can be respectively by the eq...

    Text Solution

    |