Home
Class 12
PHYSICS
Uncertainty in position of a particle is...

Uncertainty in position of a particle is `0.1587xx10^(-10)` m what will be uncertainty in its momentum in kg `ms^(-1)`?

A

`4xx10^(-23)`

B

`6.6xx10^(-28)`

C

`3.1xx10^(-24)`

D

`6.6xx10^(-24)`

Text Solution

Verified by Experts

The correct Answer is:
D
From Heisenberg.s principle
`Deltax Deltap=(h)/(2pi)`
`therefore Deltap=(h)/(2pix)`
`=(6.625xx10^(-34))/(6.28xx0.1587xx10^(-10))`
`=6.64736xx10^(-24)~~6.6xx10^(-24)kg ms^(-1)`
Promotional Banner

Topper's Solved these Questions

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-D (multiple choice questions (MCQs) (Davisson and Germer experiment)|23 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-D (MCQ based on Textual Illustrations and Exercise)|1 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    KUMAR PRAKASHAN|Exercise Section-D (multiple choice questions (MCQs) (Dual nature of light ,de-Broglie wavelength)|1 Videos

  • CURRENT ELECTRICITY

    KUMAR PRAKASHAN|Exercise SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs ASKED IN BOARD EXAM AND GUJCET)|23 Videos

  • ELECTRIC CHARGES AND FIELDS

    KUMAR PRAKASHAN|Exercise SECTION D MCQS ASKED IN COMPETITIVE EXAMES (MCQS AKSED IN BOARD EXAM AND GUJCET)|14 Videos

Similar Questions

Explore conceptually related problems

Uncertainty in position of electron is 10^(-10) m. uncertainty in its momentum will be……. kgms^(-1).(h=6.62xx10^(-34) J-s)

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

Uncertainty of momentum of a particle is 10^(-30) kg ms^(-1) ,minimum uncertainty in its position will be……..

The uncertainty in the position of a particle equal to the de-Broglie wavelength uncertainty in its momentum will be…….

Uncertainty in position of a particle of 25g in space is 10^(8)m Hence uncertainty in velocity (ms^(-1)) is (Planck's constant h=6.6xx10^(-34)Js )

Maximum uncertainty in position of a proton is 6xx10^(-8)m .Uncertainty in measurement of its velocity will be …….( h=6.625xx10^(-34)) Js,Mass of proton = 1.67xx10^(-27) kg

The uncertainity in the position of a moving bullet of mass 10 g is 10^(-5) m.Calculate the uncertainty in its velocity .

The uncertainty in momentum of an electron is 1 xx 10^-5 kg - m//s . The uncertainty in its position will be (h = 6.62 xx 10^-34 kg = m^2//s) .