Home
Class 12
PHYSICS
The mass of a proton is 1840 times that ...

The mass of a proton is 1840 times that of an electron. An electron and a proton, with equal kinetic energies, enter perpendicularly uniform magnetic field. Now ______ .

A

The path of proton will be more corved than that of the electron

B

The paths of proton will be less curved than that of electron

C

The paths of both proton and electron will be equally curved

D

The paths of both will be straight

Text Solution

Verified by Experts

The correct Answer is:
B
`r_(e)=(sqrt(2m_(e)k_(e)))/(qB),`
`r_(p)=(sqrt(m_(p)k_(p)))/(qB)`
`:." "r_(e)/r_(p)=sqrt((m_(e)k_(e))/(m_(p)k_(p)))=sqrt(m_(e)/(m_(p)))`
`(because k_(e)= k_(p))`
`:. " " r_(p) gt r_(e)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A proton, a deuteron and alpha -particle, whose kinetic energies are same, enter perpendicularly a uniform magnetic field. Compare the radii of their circular paths.

What is the charge of an electron, proton and a neutron ?

The nucleus of an atom consist of protons and electrons ..

An electron and a proton have same speed. How are their wavelength related?

What is the kinetic energy of an electron in electronvolts with mass equal to double its real mass?

When a charged particle enters a uniform magnetic field its kinetic energy

A proton and an electron are placed in a uniform electric field.

An electron and a proton, each has a wavelenght of 1.00 nm. Find the kinetic energy of electron.

An electron and a proton, each has a wavelenght of 1.00 nm. Find their momenta