30 g of water at 300^(@)C is in a beaker . Which of the following when added to water , will have greater cooling effect ?( specific heat of copper =0.1 cal//g^(@)C)

30 g of water at 300^(@)C is in a beaker . Which of the following when

1.	30 g of water at 300^(@)C is in a beaker . Which of the following when added to water , will have greater cooling effect ?( specific heat of copper =0.1 cal//g^(@)C)
Answer» 100 gm of water at `10^(@) C` 15 gms of water at `0^(@) C` 3 gms of ice at `0^(@) C` 18 gms of copper at `0^(@) C` Answer :A