A copper calorimeter containing water is heated by means of an electric heater for a certain time. Next, the water is transferred to a container having negligible heat capacity, and the heater is operated again for the same time. The rise in temperature of water in the latter case is observed to be 1.2 times that in the former, what is the ratio of the water equivalent of the copper calorimeter to the mass of water ?

A copper calorimeter containing water is heated by means of an electri

1.	A copper calorimeter containing water is heated by means of an electric heater for a certain time. Next, the water is transferred to a container having negligible heat capacity, and the heater is operated again for the same time. The rise in temperature of water in the latter case is observed to be 1.2 times that in the former, what is the ratio of the water equivalent of the copper calorimeter to the mass of water ?
Answer» ANSWER :` 1 : 5`