Home
Class 12
PHYSICS
What is the ratio of the magnetic mome...

What is the ratio of the magnetic moment of an electron to its angular momentum in the ground state of a hydrogen atom ?

A

evr

B

`(evr)/(4)`

C

`(evr)/(2)`

D

`(evr)/(8)`

Text Solution

Verified by Experts

The correct Answer is:
A

Magnetic moment =1A =M and L=mvr
But I= `(q)/(t)=(e )/(T)=(e )/(2pir/(v))=(ev)/(2pir)`
`therefore M= (ev)/(2pir)xxpir^(2)=(evr)/(2)`
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|15 Videos
  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MARVEL PUBLICATION|Exercise MCQ|195 Videos
  • OSCILLATIONS

    MARVEL PUBLICATION|Exercise MCQ|368 Videos

Similar Questions

Explore conceptually related problems

Magnetic moment of an electron in nth orbit of hydrogen atom is

Show that the ratio of the magnitic dipole moment to the angular momentum (1 = mur) is a universal constant for hydrogen atom and ions find the value

The speed of an electron in the orbit of hydrogen atom in the ground state is

calculate the magnetic dipolemoment corresponding to the motion of the electron in the ground state of a hydrogen atom

The ratio of magnetic dipole moment to angular momentum of electron is

The minimum orbital angular momentum of the electron in a hydrogen atom is

Calculate the energy of the electron in the ground state of the hydrogen atom.

(a) Find the radius of Li(++) ions in its grounds state assuming Bohr's model to be valid. (b) Find the maximum angular speed of the electron of a hydrogen atom in a stationary orbit. (c ) Average lifetime of a H atom excited to n=2 state is 10^(-8) sec. Find the number of revolutions made by the electron on the average before it jumps to the ground state. (d) Calculate the magnetic dipole moment corresponding to the motion of the electron in the ground state of a hydrogen atom. (e) Using the known values for hydrogen atom, calculate : (i) radius of third orbit for Li^(+2) (ii) speed of electron in fourth orbit for He^(+)