Home
Class 12
PHYSICS
If the uncertainty in the position of pr...

If the uncertainty in the position of proton is `6xx10^-8m`, then the minimum uncertainty in its speed is

A

`1 cms^(-1)`

B

`1 ms^(-1)`

C

`1 mms^(-1)`

D

`100 ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Deltap=mDeltav=h/(Deltax)` or `Deltav=h/(mDeltax)=(1.034xx10^(-34))/(1.67xx10^(-27)xx6xx10^(-8))=1 ms^(-1)`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE

    NARAYNA|Exercise LEVEL-I (H.W)|7 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    NARAYNA|Exercise ASSERTION AND REASON|15 Videos

  • ELECTRIC CHARGES AND FIELDS

    NARAYNA|Exercise EXERCISE -4|43 Videos

Similar Questions

Explore conceptually related problems

If the uncertainity in the position of proton is 6xx10^(8)m , then the minimum uncertainity in its speed is

If the uncertainty in the position of an electron is 10^(-10) m, then what be the value of uncertainty in its momentum in kg m s^(-1) ? (h = 6.62 xx10^(-34) Js)

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

The uncertainty in the position of a buller weight 20 g is +- 10^(-4) m .Calculate the uncertainty in its velocity

The uncertainty in the momentum of a particle is 6xx10^(-9)kg ms^(-1) . Calculate the uncertainty in its position.

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

The uncertainty in position of an electron in a certain state is 5 xx 10^(-10) m . The uncertainty in its momentum might be

Calculate the uncertainty in the velocity of a particle of mass 1.1xx10^(-27) kg if the uncertainty in the uncertainty in its position is 3xx10^(-10)cm .

NARAYNA-DUAL NATURE-LEVEL-II (H.W)
  1. When a metal surface is illuminated by a monochromatic light of wave-l...

    Text Solution

    |

  2. Ultraviolet light of wavelength 800 A and 700 A when allowed to fall ...

    Text Solution

    |

  3. In a photoelectric effect experiment, photons of energy 5eV are incide...

    Text Solution

    |

  4. The number of photons emitted per second by a 62W source of monochroma...

    Text Solution

    |

  5. Photons of frequencies 2.2xx10^(15) Hz and 4.6xx10^(15) Hz are inciden...

    Text Solution

    |

  6. If stopping potentials corresponding to wavelengths 4000A and 4500A ar...

    Text Solution

    |

  7. In a photoelectric experiment anode potential is ploted against plate ...

    Text Solution

    |

  8. An electron moves with a speed of sqrt3/2c. Then its mass becomes…. Ti...

    Text Solution

    |

  9. Photons of energy 2.0eV fall on a metal plate and release photoelectro...

    Text Solution

    |

  10. A proton when accelerated through a p.d of V volt has wavelength lambd...

    Text Solution

    |

  11. The momentum of photon of electromagnetic radiation is 3.3xx10^(-29)kg...

    Text Solution

    |

  12. If the energy of a particle is reduced to one fourth, then the percent...

    Text Solution

    |

  13. The de Broglie wavelength associated with an electron of velocity 0.3c...

    Text Solution

    |

  14. The two lines A and B in fig. show the photo electron of de Broglie wa...

    Text Solution

    |

  15. The uncertainity in the position of a particle is equal to the de-Brog...

    Text Solution

    |

  16. If the uncertainty in the position of proton is 6xx10^-8m, then the mi...

    Text Solution

    |

  17. From Davisson-Germer experiment an alpha particle and a proton are acc...

    Text Solution

    |