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Wafer of volume 2 filter in a container is heated with a coil of 1kw at 27°C. The lid of the containes is open and energy dissipates at the late of 160 fraction numerator J over denominator S end fraction. In how much time temperature will rise from to 27°C 77°C. Specific heat of wafers is 4.2 fraction numerator K J over denominator K g end fraction

Physics-General

  1. 6min2s    
  2. 7 min    
  3. 8min20s    
  4. 14min    

    Answer:The correct answer is: 8min20s

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