An immersion heater is rated 120W. How long does it take the heater to raise the temperature of 1.2kg of water by 15°C. (Assuming heat lost to the surrounding is negligible. Specific heat capacity of water = 4200 Jkg‾¹K‾¹C) by Sunday | May 23 | Physics WAEC | 0 comments A. 65.0 minutes B. 60.0 minutes C. 52.5 minutes D. 10.5 minutes Correct Answer: Option D C. 52.5 minutes Users Also Read These:Calculate the quantity of heat needed to change the…A 50W electric heater is used to heat a metal block…Calculate the energy required to vapourize 50g of…0.5kg of water at 10ºC is completely converted to…Heat is supplied uniformly at the rate of 100W to…