question_answer

  A glass tumbler containing hot water is kept in the freezer compartment of refrigerator (temperature <0°C). If you could measure the temperature the content of the tumbler, which of the following graphs would correctly             represent the change in its temperature as a function of time?                   [NCERT Exemplar]  

Answer:

                 (a) the temperature will remain constant till all the water will freeze. After this, temperature would fall again.