Home
Class 12
PHYSICS
A proton, a deuteron and an o particle e...

A proton, a deuteron and an o particle enter a magnetic field perpendicular to field with same velocity. What is the ratio of the radii of circular paths?

A

`1:2:2`

B

`2:1:1`

C

`1:1:2`

D

`1:2:1`

Text Solution

Verified by Experts

The correct Answer is:
A
When a charged particles of charge q and mass m enters with velocity v perpendicular to magnetic field B,it follows a circular path whose radius is given by `r=(mv)/(Bq)`
`rprop(m)/(q)` for the same value of v and B.
`:.r_(p):r_r_(alpha)= (mp)/(qp):(md)/(qd):(m_(alpha))/(q_(alpha))`
where subscripts p, d and `alpha` represent proton , deuteron and `alpha` particles respectively.
`:.r_(p):r_r_(alpha)= (m)/(qp):(2m)/(e):(4m)/(2_(e))=1:2:2`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    MTG GUIDE|Exercise NEET CAFE (TOPICWISE PRACTICE QUESTIONS)(CYCLOTRON)|2 Videos

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    MTG GUIDE|Exercise NEET CAFE (TOPICWISE PRACTICE QUESTIONS)(FORCE ON A CURRENT CARRYING CONDUCTOR IN A UNIFORM MAGNETIC FIELD)|10 Videos

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    MTG GUIDE|Exercise NEET CAFE (TOPICWISE PRACTICE QUESTIONS)(AMPER.S CIRCUITAL LAW AND ITS APPLICATIONS)|8 Videos

  • ELECTROSTATICS

    MTG GUIDE|Exercise AIPMT/NEET (MCQ.s)|34 Videos

  • OPTICS

    MTG GUIDE|Exercise AIPMT/NEET|55 Videos

Similar Questions

Explore conceptually related problems

A proton and an alpha particle of the same enter, in turn, a region of uniform magnetic field acting perpendicular to their direction of motion. Deduce the ratio of the radii of the circular paths described by the proton and alpha particle.

A charged particle enters a uniform magnetic field perpendicular to it. The magnetic field

Knowledge Check

  • A proton , a deuteron and an alpha -particle enter a magnetic field perpendicular to field with same velocity. What is the ratio of the radii of circular paths ?

    A
    `1:2:2`
    B
    `2:1:1`
    C
    `1:1:2`
    D
    `1:2:1`

  • An alpha particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their velocities. The ratio of the radii of their circular paths is

    A
    `4 : 1`
    B
    `1:4`
    C
    `2:1`
    D
    `1:2`

  • An alpha particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their veloccites find the ratio of the radii of their circular path

    A
    `4:1`
    B
    `1:4`
    C
    `2:1`
    D
    `1:2`

    • Similar Questions

    Explore conceptually related problems

    A proton and an alpha -particles enters in a uniform magnetic field with same velocity, then ratio of the radii of path describe by them

    A proton and an alpha particle enter the same magnetic field which is perpendicular to their velocity. If they have same kinetic energy then ratio of radii of their circular path is

    A particle of mass m and charge q enters a magnetic field B perpendicularly with a velocity v , The radius of the circular path described by it will be

    A proton and an alpha- particle enter a uniform magnetic field at right angles to the field with same speed. The ratio of the periods of alpha- particle and proton is

    Assertion An alpha- particle and a deuteron having same kinetic energy enter in a uniform magnetic field perpendicular to the field. Then, radius of circular path of alpha- particle will be more. Reason (q)/(m) ratio of an alpha- particle is more than the (q)/(m) ratio of a deuteron.

    Home
    Profile