What is cyclotron frequency of an electr...

What is cyclotron frequency of an electron with an energy of 100 eV in the earth's magnetic field of `1xx10^(-4)Wb//m^(2)` if its velocity is perpedicular to magnetic field.

0.7 MHz

2.1 MHz

1.4 MHz

2.8 MHz

Text Solution

Verified by Experts

The correct Answer is:

Cyclotron for frequency is given by
`v=(Bq)/(2pim)=(10^(-4)xx1.6xx10^(-19))/(2xx(22//7)xx9xx10^(-31))`
`=(1.6xx7xx10^(8))/(2xx22x9)`
`=2.82xx10^(6)Hz`
`=2.8MH z`

Topper's Solved these Questions

PRACTICE SET 08
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 OBJECTIVE TYPE|50 Videos
PRACTICE SET 10
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

The cyclotron frequency of an electron gyrating in a magnetic field of 1T is approximately:

The cyclotron frequency of an electron gyrating in a magnetic field of 2 T is approximately

An alpha particles is projected with a velocity of 10^(7) m/s, in a uniform magnetic field of induction, 1.2xx10^(-6)Wb//m^(2), in a direction perpendicular to the field. If the lateral force action on the particle is 3.84xx10^(-18)N, what is the change on the a particle ?

If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field, then

The horizontal component of the earth's magnetic field is 3.6 xx 10^(-5) T where the dip is 60^@ . Find the magnitude of the earth's magnetic field.

At what distance from a long straight wire carrying current of 12A will be the magnetic field be the equal to 3xx10^(-5) (Wb)//(m^(2)) ?

A force of 1.732 xx 10^(-2) N acts on a particleof charge q moving with a velocity 1//1000^(th) of the velocity of light in a magnetic field of induction 2/sqrt(3) xx 10^(-5) Wb//m^(2) and perpendicular to the field then q is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 09-PAPER 1 (PHYSICS & CHEMISTRY)

The inductance of a coil in which a current of 0.2 A is increasing at ...
Text Solution
|
The values of two resistors are R(1)=(6+-0.3)kOmega and R(2)=(10+-0.2)...
Text Solution
|
What is cyclotron frequency of an electron with an energy of 100 eV in...
Text Solution
|
In the circuit given below, the ameter and voltmeter are ideal measuri...
Text Solution
|
When the road is dry and the coefficient of friction is mu, the maximu...
Text Solution
|
What should be the rate of variation of current in self inductance 1H ...
Text Solution
|
The potential of a large liquid drop when eight liquid drops are combi...
Text Solution
|
If the wavelength of incident light changes from 400 nm to 300 nm, the...
Text Solution
|
A hollow cylinder has a charge qC within it. If phi is the electric fl...
Text Solution
|
A point is situated at 6.5 cm and 6.65 cm from two coherent sources. F...
Text Solution
|
The binding energy of deuteron is 2.2 MeV and that of .(2)^(4)He is 28...
Text Solution
|
In an n-p-n transistor, the collector current is 10 mA. If 90% of the ...
Text Solution
|
Two equal vector have a resultant equal to either of them, then the an...
Text Solution
|
In the following network of 5 branches, the respective current are l(1...
Text Solution
|
Balmer gave an equation for wavelength of visible radiation of H-spect...
Text Solution
|
A radioactive substance has an average life of 5 hours. In a time of 5...
Text Solution
|
A solid sphere of radius R has moment of inertia l about its diameter....
Text Solution
|
If the angle between the vectors A and B is theta, the value of the p...
Text Solution
|
By sucking a straw a student can reduce the pressure in his lungs to 7...
Text Solution
|
A stretched sonometer wire is in unison with a tuning fork. When lengt...
Text Solution
|