Home
Class 12
PHYSICS
In an orbital motion, the angular moment...

In an orbital motion, the angular momentum vector is:

A

along radius vector

B

perpendicular to orbital plane

C

parallel to linear momentum

D

in the orbital plane.

Text Solution

Verified by Experts

The correct Answer is:
B

Angular momentum `vecL=vecr xx vecp`
`therefore ` Direction of `vecL` is perpendicular to orbital plane.
Thus correct choice is (b).
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • GRAVITATION

    MODERN PUBLICATION|Exercise Multiple Choice Questions (LEVEL-II)|64 Videos
  • GRAVITATION

    MODERN PUBLICATION|Exercise Multiple Choice Questions (LEVEL-III Questions From AIEEE/JEE Examination)|6 Videos
  • ELECTROSTATICS

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS |39 Videos
  • HEAT AND THERMODYNAMICS

    MODERN PUBLICATION|Exercise Recent Competitve Questions|17 Videos

Similar Questions

Explore conceptually related problems

What will be the angular momentum in fourth orbit if L is the angular momentum of the electron in the second orbit of hydrogen atom ?

Represent the magnetic moment vector in terms of angular momentum vector of electrons revolving around the nucleus.

Knowledge Check

  • In the above question, the angular momentum of the stone is :

    A
    `64pikgxxm^(2)//s`
    B
    `16pikgxxm^(2)//s`
    C
    `4pikgxxm^(2)//s`
    D
    `pikgxxm^(2)//s`
  • A particle performing uniform circular motion has angular momentum L. If its angular frequency is doubled and its kinetic halved, then the new angular momentum is :

    A
    `(L)/(2)`
    B
    `(L)/(4)`
    C
    `2L`
    D
    `4L`
  • A particle performing uniform circular motion has angular momentum L. If its angular frequency is doubled and its kinetic energy halved, then the new angular momentum is :

    A
    `(L)/(2)`
    B
    `(L)/(4)`
    C
    2L
    D
    4L
  • Similar Questions

    Explore conceptually related problems

    The ratio of the magnetic dipole moment to the angular momentum of the electron in the 1^st orbit of hydrogen atom is

    According to Bohr's theory, the angular momentum of an electron is 5 th orbit is

    A hydrogen atom in the ground state absorbs 12.09 eV of energy . The change in the orbital angular momentum of the electron is :

    A hydrogen atom in the ground state absorbe 12.09 eV of energy. The change in the orbital angular momentum of the electron is:

    The ratio of the magnetic dipole moment to the angular momentum of the electron in the 1^(st) orbit of hydrogen atom is