Q1. An overhead tank of capacity 1000 litres has to be filled in 1/2 an hour using a water pump. The tank is kept at a height 10m above ground and the water level is 10m below ground. The opening of the inlet pipe inside the tank is 1.11cm2. Assuming the efficiency of the motor to be 60%, the electric power used is (Neglect viscosity):Physics — Work, Power and Energy — Question 1 of 238A. 118 WB. 130 WC. 146 WD. 193 WPractice more Physics MCQs for entrance exam preparation on Examora.io. Next Question →