Physics-
General
Easy

Question

A particle with charge q, moving with a momentum p, enters a uniform magnetic field normally. The magnetic field has magnitude B and is confined to a region of width d, where d less than fraction numerator p over denominator B q end fraction, The particle is deflected by an angle theta in crossing the field

  1. sin invisible function application theta equals fraction numerator B q d over denominator p end fraction    
  2. sin invisible function application theta equals fraction numerator p over denominator B q d end fraction    
  3. sin invisible function application theta equals fraction numerator B p over denominator q d end fraction    
  4. sin invisible function application theta equals fraction numerator p d over denominator B q end fraction    

The correct answer is: sin invisible function application theta equals fraction numerator B q d over denominator p end fraction


    From figure it is clear that
    sin invisible function application theta equals fraction numerator d over denominator r end fraction also r equals fraction numerator p over denominator q B end fraction
    sin invisible function application theta equals fraction numerator B q d over denominator p end fraction

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