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A proton, a deuteron and an α - particle with same kinetic energy enter into a uniform magnetic field at right angle to magnetic field. The ratio of the radii of their respective circular paths is

Option 1 -

1 : 2 : 2

Option 2 -

1 : 1 : 2

Option 3 -

2 : 1 : 1

Option 4 -

1 : 2 : 1

0 4 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • P

    Answered by

    Payal Gupta | Contributor-Level 10

    3 months ago
    Correct Option - 4


    Detailed Solution:

    r = m v q B = 2 m k . E q B  

    r ∝ m q                

    mp = m

    qp = q

    md = 2m

    qd = q

    ma = 4m

    qa = 2q

    rprd=mp×qdqP×md

    rdrα=2

    rp:rd:rα=1:2:1         

         

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