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If. two almost identical waves having frequencies n subscript 1 end subscript and n subscript 2 end subscript produced one after the other superposes then the time interval to obtain a beat of maxirmum intensity is .......

Physics-General

  1. fraction numerator 1 over denominator n subscript 1 end subscript plus n subscript 2 end subscript end fraction    
  2. fraction numerator 1 over denominator n subscript 1 minus n subscript 2 end fraction
  3. fraction numerator 1 over denominator n subscript 1 end subscript end fraction plus fraction numerator 1 over denominator n subscript 2 end subscript end fraction    
  4. fraction numerator 1 over denominator n subscript 1 end subscript end fraction minus fraction numerator 1 over denominator n subscript 2 end subscript end fraction    

    Answer:The correct answer is: fraction numerator 1 over denominator n subscript 1 minus n subscript 2 end fraction

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