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:An immersion heater rated 400W, 220V is used to heat…Calculate the power rating of an immersion heater…0.5kg of water at 10ºC is completely converted to…Calculate the quantity of heat needed to change the…An electric heater rated 220V; 1000W is immersed…