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General
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Question

If t1/2 is the half life of a substance then t3/4 is the time in which substance

  1. Decays fraction numerator 3 over denominator 4 end fraction t h    
  2. Remains fraction numerator 3 over denominator 4 end fraction t h    
  3. Decays fraction numerator 1 over denominator 2 end fraction    
  4. Remains fraction numerator 1 over denominator 2 end fraction    

The correct answer is: Decays fraction numerator 3 over denominator 4 end fraction t h


    You must remember that t1/2 is time in which substance decays half. Hence in t3/4 time substance decays fraction numerator 3 over denominator 4 end fraction t h

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